Tarutani, JP

Ichiro Tarutani, Owariasahi-Shi JP

Patent application number	Description	Published
20110039644	BELT TYPE STEPLESS TRANSMISSION AND PULLEY FOR THE SAME - A stationary pulley (	02-17-2011
20120208663	ELEMENTS OF DRIVE POWER TRANSFER BELT OF BELT-DRIVE CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE - Provided are elements arranged along a ring of a drive power transfer belt wound on pulleys of a belt-drive continuously variable transmission. Each element has a recess at one side of the element and a projection projecting from the other side to fit into the recess of the adjacent element. The projection has a first engagement portion provided at its base side such that a predetermined engagement gap is created on the radially outer side when the projection fits in the recess of the adjacent element, and a second engagement portion provided at the tip side of the projection and decreasing in diameter toward the tip of the projection from the first engagement portion. The gradient with which the diameter of the second engagement portion decreases is larger than the gradient with which the diameter of the first engagement portion decreases toward the tip of the projection.	08-16-2012
20130109515	CHAIN-TYPE CONTINUOUSLY VARIABLE TRANSMISSION	05-02-2013
20130109521	CHAIN FOR CONTINUOUSLY VARIABLE TRANSMISSION	05-02-2013
20140066243	CHAIN FOR CONTINUOUSLY VARIABLE TRANSMISSION - A chain, wound to span between two pulleys each having facing conical surfaces able to change a distance therebetween and sandwiched by the facing conical surfaces, includes: link units each configured such that plate-shaped links, each having openings, are oriented in a chain circumferential direction and arranged in a chain width direction; and pins each extending through the openings of the links of the link units adjacent in the chain circumferential direction and each contacting the conical surfaces of sheaves at both ends thereof. A curvature radius of a shape curve representing a shape of each end face of each pin in a plane perpendicular to the chain circumferential direction is larger at an inner side in a pulley radial direction than at an initial contact point that is a contact point at the time when a load on each pin is 0.	03-06-2014

Jun Tarutani, Shimotuga-Gun JP

Patent application number	Description	Published
20100249563	PUNCTURE DEVICE AND IN VIVO COMPONENT MEASUREMENT SYSTEM - A puncture device which punctures a skin of a subject for extracting a tissue fluid from a puncture site of the subject. The puncture device included a timer; a notifying section which notifies a user that specific time measured by the time has passed; a puncture mechanism which punctuates the skin; and an interlock mechanism which caused the timer to start time measurement in conjunction with a punctuate action by the puncture mechanism.	09-30-2010

Kazumasa Tarutani, Osaka JP

Patent application number	Description	Published
20090003148	INFORMATION RECORDING SYSTEM AND AN INFORMATION RECORDING METHOD - An information recording system for recording information on an optical disc using a reference clock signal generated based on a push-pull signal including a wobble frequency component, the system includes an amplitude obtaining unit for obtaining an amplitude value of the push-pull signal, a threshold calculation unit for calculating a displacement threshold of the push-pull signal based on the amplitude value obtained by the amplitude obtaining unit, and a noise reduction unit for generating a corrected push-pull signal by correcting the push-pull signal such that a displacement exceeding the displacement threshold is reduced. The reference clock signal is generated based on the corrected push-pull signal generated by the noise reduction unit.	01-01-2009

Kohei Tarutani, Tokyo JP

Patent application number	Description	Published
20150064931	FILM FORMATION METHOD AND FILM FORMATION APPARATUS - Disclosed is a film formation method, including vaporizing a plurality of raw material monomers in respective corresponding vaporizers, supplying the plurality of raw material monomers into a film formation apparatus, causing vapor deposition polymerization of the plurality of raw material monomers in the film formation apparatus to form an organic film on a substrate, and removing an impurity contained in at least one raw material monomer among the plurality of raw material monomers before the vapor deposition polymerization.	03-05-2015

Kohei Tarutani, Tsukuba-Shi JP

Patent application number	Description	Published
20080271753	METHOD OF CLEANINIG STANNANE DISTRIBUTION SYSTEM - Methods for cleaning a stannane distributions system. A stannane distribution system connecting a stannane supply source and a semiconductor manufacturing tool is provided. Stannane is flown through the system, and a tin layer is formed on the components of the distribution system. This tin layer is then cleaned from the distribution system without the use of liquid cleaning chemicals.	11-06-2008

Kouhei Tarutani, Kanagawa-Ken JP

Patent application number	Description	Published
20130294563	FAST REACTOR AND FAST REACTOR REFLECTOR ASSEMBLY - A fast reactor performing reflector control to control reactivity of the core by moving a neutron reflector in the vertical direction, including: a core fuel assembly; a neutron absorption assembly in the middle of the core fuel assembly; a reflector assembly at the circumference of the core fuel assembly; plural inner neutron shields at the circumference of the reflector assembly; a cylindrical core barrel surrounding entirety of the plural neutron shields; and a drive mechanism controlling the reflector. The reflector assembly includes: a reflector element that reflects neutrons from the core fuel assembly towards the core; a cavity section, arranged thereabove, that permits leakage of neutrons to outside the core; a linkage mechanism that links the reflector element and the cavity section; a guide tube that defines a space for removal/insertion of these; and a connecting section that connects the drive mechanism and the cavity section.	11-07-2013

Masayoshi Tarutani, Chiyoda-Ku JP

Patent application number	Description	Published
20140312361	SEMICONDUCTOR ELEMENT, SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR ELEMENT - The semiconductor element has an electrode including: a Ni-inclusion metal layer containing nickel formed on a side of at least one surface of the semiconductor-element constituting part; a Ni-barrier metal layer formed outwardly on a side of the Ni-inclusion metal layer opposite to the side toward the semiconductor-element constituting part; and a surface metal layer outwardly formed on a side of the Ni-barrier metal layer opposite to the side toward the semiconductor-element constituting part, to be connected to the metal nanoparticles sintered layer; wherein the Ni-barrier metal layer contains a metal for suppressing diffusion of nickel toward the surface metal layer.	10-23-2014

Masayoshi Tarutani, Tokyo JP

Patent application number	Description	Published
20100254182	MAGNETIC STORAGE DEVICE - A magnetic storage device which enables stable operation at the time of recording information into MRAM and the stable retention of recorded information. The die of the magnetic storage device has a substrate, first and second wirings, a magnetic storage element and a first magnetic shielding structure. The first magnetic shielding structure is formed to cover the magnetic storage element in a plan view. Second and third magnetic shielding structures sandwich the die in a thickness direction. A lead frame member has the die mounted thereon and contains a ferromagnetic material. The lead frame member overlaps with only part of the die in a plan view.	10-07-2010
20110241140	SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE ASSEMBLY - A semiconductor device excellent in the magnetic shielding effect of blocking off external magnetic fields is provided. The semiconductor device includes: an interlayer insulating film so formed as to cover a switching element formed over a main surface of a semiconductor substrate; a flat plate-like lead wiring; a coupling wiring coupling the lead wiring and the switching element with each other; and a magnetoresistive element including a magnetization free layer the orientation of magnetization of which is variable and formed over the lead wiring. The semiconductor device has a wiring and another wiring through which the magnetization state of the magnetization free layer can be varied. In a memory cell area where multiple magnetoresistive elements are arranged, a first high permeability film arranged above the magnetoresistive elements is extended from the memory cell area up to a peripheral area that is an area other than the memory cell area.	10-06-2011
20110312161	METHOD FOR MANUFACTURING SILICON CARBIDE SEMICONDUCTOR DEVICE - A film of an epitaxial layer that allows the reduction in both the height of a bunching step and crystal defects caused by a failure in migration of reactive species on a terrace is formed on a SiC semiconductor substrate having an off angle of 5 degrees or less. A film of a first-layer epitaxial layer is formed on and in contact with a surface of the SiC semiconductor substrate having an off angle of 5 degrees or less. Subsequently, the temperature in a reactor is lowered. A second-layer epitaxial layer is caused to epitaxially grow on and in contact with a surface of the first-layer epitaxial layer. In the above-described manner, the epitaxial layer is structured with two layers, and the growth temperature for the second epitaxial layer is set lower than the growth temperature for the first epitaxial layer.	12-22-2011
20130126906	SILICON CARBIDE EPITAXIAL WAFER AND MANUFACTURING METHOD THEREFOR, SILICON CARBIDE BULK SUBSTRATE FOR EPITAXIAL GROWTH AND MANUFACTURING METHOD THEREFOR AND HEAT TREATMENT APPARATUS - A method is provided in order to manufacture a silicon carbide epitaxial wafer whose surface flatness is very good and has a very low density of carrot defects and triangular defects arising after epitaxial growth. The silicon carbide epitaxial wafer is manufactured by a first step of annealing a silicon carbide bulk substrate that is tilted less than 5 degrees from <0001> face, in a reducing gas atmosphere at a first temperature T	05-23-2013
20140077232	SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - A semiconductor device capable of suppressing time variation of a threshold voltage and a method of manufacturing the same. A semiconductor device according to the present invention comprises a drift layer formed on a semiconductor substrate, first well regions formed in a surface layer of the drift layer, being apart from one another, a gate insulating film formed, extending on the drift layer and each of the first well regions, a gate electrode selectively formed on the gate insulating film, a source contact hole penetrating through the gate insulating film and reaching the inside of each of the first well regions, and a residual compressive stress layer formed on at least a side surface of the source contact hole, in which a compressive stress remains.	03-20-2014
20140232004	SEMICONDUCTOR DEVICE - The present invention includes a semiconductor substrate and a back electrode (a back multilayer electrode in the preferred embodiment) provided on a back surface of the semiconductor substrate. A rough source pattern is formed in a peripheral edge portion of the back surface of the semiconductor substrate which faces the back multilayer electrode.	08-21-2014
20150235925	SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD - A semiconductor device of the present invention includes a semiconductor element, a surface electrode formed on a surface of the semiconductor element, a metal film formed on the surface electrode so as to have a joining portion and a stress relieving portion formed so as to border on and surround the joining portion, solder joined to the joining portion while avoiding the stress relieving portion, and an external electrode joined to the joining portion through the solder.	08-20-2015
20150294871	SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE - According to a first aspect of the present invention, a method of manufacturing semiconductor device includes the step of preparing a silicon substrate. The silicon substrate includes an N-type silicon layer on one surface and at least one of a PN junction, an electrode film, and a protective film on another surface. The method includes the steps of forming a Si—Ti junction by forming a first electrode film made of titanium on the N-type silicon layer; forming a second electrode film made of Al—Si on the first electrode film; forming a third electrode film made of Ni on the second electrode film; and heating the silicon substrate after forming the third electrode film. A titanium silicide layer is not formed between the N-type silicon layer and the first electrode film.	10-15-2015

Shinji Tarutani, Haibara-Gun JP

Patent application number	Description	Published
20090011366	PATTERN FORMING METHOD, RESIST COMPOSITION TO BE USED IN THE PATTERN FORMING METHOD, NEGATIVE DEVELOPING SOLUTION TO BE USED IN THE PATTERN FORMING METHOD AND RINSING SOLUTION FOR NEGATIVE DEVELOPMENT TO BE USED IN THE PATTERN FORMING METHOD - A pattern forming method includes (a) coating a substrate with a resist composition including a resin that includes a repeating unit represented by a following general formula (NGH-1), and, by the action of an acid, increases the polarity and decreases the solubility in a negative developing solution; (b) exposing; and (d) developing with a negative developing solution:	01-08-2009
20090280440	SURFACE TREATING AGENT FOR RESIST-PATTERN, AND PATTERN-FORMING METHOD USING SAME - A surface treating agent for resist pattern, characterized by containing not only a chemical species having a functional group capable of chemical adsorption to resist pattern and a polymerizable group but also a solvent.	11-12-2009
20100028803	SURFACE TREATING AGENT FOR RESIST PATTERN FORMATION, RESIST COMPOSITION, METHOD OF TREATING SURFACE OF RESIST PATTERN THEREWITH AND METHOD OF FORMING RESIST PATTERN - A surface treating agent for resist pattern formation comprises a compound having two or more nucleophilic functional groups in each of the molecules thereof, or its salt, and a solvent.	02-04-2010
20120076948	METHOD FOR PRODUCING CURABLE COMPOSITION FOR IMPRINTS - Provided is a method for producing a curable composition for imprints which excellent in patternability.	03-29-2012
20120207943	METHOD FOR PRODUCING CURABLE COMPOSITION FOR IMPRINTS - Provided is a method of producing a curable composition for imprints including (A) a polymerizable monomer, (B) a polymerization initiator, and (C) a solvent which is capable of effectively suppressing lifting or separation of patterns, excellent in coatability, and excellent in time-dependent stability. The method of producing a curable composition for imprints comprises preparing one species of liquid (D) which contains at least either one of the polymerizable monomer (A) and the polymerization initiator (B), passing the liquid (D) through a filter, and then adding the solvent (C).	08-16-2012
20130011785	PATTERN FORMING METHOD AND RESIST COMPOSITION - Provided is a method of forming a pattern, ensuring excellent exposure latitude (EL) and focus latitude (depth of focus DOF). The method of forming a pattern includes (A) forming a film from a resist composition, the resist composition, (B) exposing the film to light, and (C) developing the exposed film using a developer containing an organic solvent, thereby forming a negative pattern. The resist composition contains (a) a resin that is configured to decompose when acted on by an acid and ΔSP thereof represented by formula (1) below is 2.5 (MPa)	01-10-2013
20140220353	UNDERLAY FILM COMPOSITION FOR IMPRINTS AND METHOD OF FORMING PATTERN AND PATTERN FORMATION METHOD USING THE SAME - Provided is the pattern formability and line edge roughness of the resultant substrate.	08-07-2014
20140255662	CURABLE COMPOSITION FOR IMPRINT, PATTERN-FORMING METHOD AND PATTERN - Provide a curable composition for imprint, which is improved in the surface roughness of the cured film. A curable composition for imprint comprising a polymerizable compound (A), a polymerization initiator (B), and a non-polymerizable compound (C),	09-11-2014

Tomoji Tarutani, Kariya-Shi JP

Patent application number	Description	Published
20090074592	Compressor and method for operating the same - A compressor comprises a suction passage; an oil reservoir for storing a lubricating oil which is separated from a refrigerant gas having a discharge pressure; and a throttle valve provided in the suction passage and having a valve body for adjusting an opening degree of the suction passage based on a differential pressure applied to the valve body. The suction passage has an upstream suction passage which is located upstream of the throttle valve. The compressor comprises a lubricating oil passage connecting the oil reservoir to the upstream suction passage for the lubricating oil in the oil reservoir to flow to the upstream suction passage therethrough.	03-19-2009
20100018386	COMPRESSOR - The compressor is provided with an oil separator for separating oil from refrigerant gas introduced into a separation chamber, an annular space for reserving oil separated from the refrigerant gas, and a reservoir chamber for reserving the thus separated oil. The oil separator is provided in a cylindrical hole formed in a discharge chamber from which the refrigerant gas is discharged and a lid for partitioning the cylindrical hole from the discharge chamber is provided in the cylindrical hole. The oil separator introduces the refrigerant gas from the discharge chamber to the separation chamber via the introduction passage. The annular space is provided around the lid and connected to the reservoir chamber via an oil passage. The reservoir chamber is connected to a crank chamber of a pressure lower than that in the discharge chamber.	01-28-2010

Tomoji Tarutani, Aichi-Ken JP

Patent application number	Description	Published
20100307884	ELECTROMAGNETIC CLUTCH - An electromagnetic clutch includes an external drive source, a driven apparatus having a rotary shaft, a power transmission path, first and second rotating parts, a power source, an electromagnetic coil and a power cutoff mechanism. A power transmission path is formed between the external drive source and the driven apparatus, and in which the first and the second rotating parts, the electromagnetic coil and the power cutoff mechanism are disposed. The first rotating part is driven to rotate by power from the external drive source. The second rotating part is mounted on the rotary shaft for rotation therewith. The electromagnetic coil is energized by electric current from the power source to generate electromagnetic attraction force by which the first and the second rotating parts are connected for transmitting power therebetween. The power cutoff mechanism stops excessive power transmission from the external drive source to the driven apparatus when the electromagnetic coil is energized.	12-09-2010
20150044068	SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR - A compressor according to the present invention has a housing including a first and second cylinder bores. The inner diameter of the first cylinder bore is smaller than that of the second cylinder bore. In suction process, refrigerant gas is directly drawn from an inlet port into a first suction chamber. The refrigerant gas is flowed from the first suction chamber into a first compression chamber. In contrast, refrigerant gas is drawn through the inlet port, a first suction passage, the first suction chamber, a first communication passage, a swash plate chamber and a second communication passage and into a second compression chamber. According to the above-described compressor, wherein the inner diameter of the first cylinder bore is smaller than the second cylinder bore, the difference of the amplitude of the intake pulsation between the first compression chamber and the second compression chamber can be suitably reduced.	02-12-2015

Yasunori Tarutani, Chuo-Ku, Tokyo JP

Patent application number	Description	Published
20160046764	TIRE - A tire includes a circular tire frame formed of a resin material, the resin material including a polyamide-based thermoplastic elastomer having a weight average molecular weight of from 15,700 to 75,000.	02-18-2016

Yasunori Tarutani, Yokohama-Shi JP

Patent application number	Description	Published
20140366945	SOLAR CELL SEALING FILM AND SOLAR CELL USING THE SAME - The present invention provides a solar cell sealing film whereby generation of gas is decreased. The solar cell sealing film comprises a resin mixture of an ethylene-vinyl acetate copolymer and a polyethylene, and an organic peroxide. The mass ratio (EVA:PE) of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) is 8:2 to 3:7, the content of the organic peroxide is 0.1 to 1.0 parts by mass based on 100 parts by mass of the resin mixture, and the gel rate after crosslinking is 20 to 80% by mass.	12-18-2014
20150038646	COMPOSITION FOR PRODUCING SHEET FOR FORMING LAMINATE, PROCESS FOR PRODUCING THE SAME, AND SHEET FOR FORMING LAMINATE - To provide a composition for producing a sheet for forming a laminate, which contains an ethylene-vinyl acetate copolymer and a polyethylene resin, by which the above-described problems in the width of the temperature range in which a processable viscosity range is obtained and the like are improved and which excels in processing properties such as a film-forming property when producing a sheet, and a sheet for forming a laminate using this. A composition for producing a sheet for forming a laminate, which contains an ethylene-vinyl acetate copolymer and polyethylene, wherein the composition has a sea-island structure in which the ethylene-vinyl acetate copolymer is a sea phase and the polyethylene is an island phase, and a sheet for forming a laminate using this.	02-05-2015
20150267012	CURED SHEET, LAMINATE HAVING THE SAME AND PROCESS FOR MANUFACTURING THE LAMINATE - There is provided a cured sheet and a laminate having the same, wherein the cured sheet is prepared by curing a laminate forming sheet containing an ethylene-vinyl acetate copolymer and a polyethylene, excellent in adhesion durability and has a sufficient flexibility even in the case of a high content of the polyethylene. A cured sheet constituting a laminate and a laminate having the same, wherein the cured sheet is prepared by curing through cross-linking a laminate forming sheet comprising a composition containing an ethylene-vinyl acetate copolymer, a polyethylene and an organic peroxide; a weight ratio of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) (EVA:PE) is in a range of 3:7 to 8:2; and the cured sheet has a sea-island structure wherein the ethylene-vinyl acetate copolymer constitutes a sea phase and the polyethylene constitutes an island phase.	09-24-2015

Yasunori Tarutani, Kodaira-Shi JP

Patent application number	Description	Published
20150303339	PAIR OF SEALING FILMS FOR SOLAR CELL AND METHOD FOR PRODUCING SOLAR CELL MODULE USING SAME - To provide a sealing film for a solar cell, which can be effectively formed and is capable of preventing wraparound even if heating is performed in a wide temperature range when members of the solar cell module are integrated.	10-22-2015
20160005901	METHOD FOR MANUFACTURING SOLAR CELL MODULE AND SOLAR CELL MODULE - Method for manufacturing a solar cell module in which a light-receiving side sealing film	01-07-2016
20160087130	COMPOSITION FOR SOLAR CELL SEALING FILM, METHOD FOR PRODUCING SAME AND SOLAR CELL SEALING FILM - The present invention provides a composition for a solar cell sealing film prepared by mixing an ethylene-α-olefin copolymer (m-LLDPE) polymerized using a metallocene catalyst and other polymers as resin components, wherein the composition has the same processability as a composition containing m-LLDPE alone and provides a solar cell sealing film having the same transparency as the case where m-LLDPE is used alone. A composition for a solar cell sealing film comprising m-LLDPE and low-density polyethylene (LDPE), wherein the weight average molecular weight of m-LLDPE (M	03-24-2016

Yasunori Tarutani, Chuo-Ku JP

Patent application number	Description	Published
20160046152	TIRE - A tire which has a circular tire frame formed of a resin material, and a reinforcing metallic cord member wound around an outer circumferential portion of the tire frame, in which the resin material comprises a polyamide-based thermoplastic elastomer including a soft segment and a hard segment including a structural unit represented by —[CO—(CH	02-18-2016

Yoshie Tarutani, Naka-Shi JP

Patent application number	Description	Published
20140287262	TIN-PLATED COPPER-ALLOY MATERIAL FOR TERMINAL HAVING EXCELLENT INSERTION/EXTRACTION PERFORMANCE - Tin-plated copper-alloy terminal material in which Sn-based surface layer is formed on a surface of a substrate made of Cu alloy, and a Cu—Sn alloy layer is formed between the Sn-based surface layer and the substrate; the Cu—Sn alloy layer contains Cu	09-25-2014
20150056466	TIN-PLATED COPPER-ALLOY MATERIAL FOR TERMINAL HAVING EXCELLENT INSERTION/EXTRACTION PERFORMANCE - A tin-plated copper-alloy terminal material wherein: a Sn-based surface layer formed on a surface of a substrate made of Cu alloy, and a Cu—Sn alloy layer/a Ni—Sn alloy layer/a Ni or Ni alloy layer are formed in sequence from the Sn-based surface layer between the Sn-based surface layer and the substrate; the Cu—Sn alloy layer is a compound-alloy layer containing Cu	02-26-2015

Yoshie Tarutani, Aizuwakamatsu-Shi JP

Patent application number	Description	Published
20130156631	METHOD OF REMOVING OXIDE FILM ON SURFACE OF COPPER OR COPPER-BASE ALLOY AND COPPER OR COPPER-BASE ALLOY RECOVERED USING THE METHOD - A pickling solution, including: 50 g/L to 400 g/L of sulfuric acid; 1 g/L to 100 g/L of at least one oxidant selected from a group consisting of nitric acid, hydrogen peroxide, peroxodisulfate ions, and iron (III) ions; 0.01 g/L to 10 g/L of at least one additive selected from a group consisting of aromatic sulfonic acid, aromatic sulfonate, alkylamine, aromatic carboxylic acid, and aromatic carboxylate; 0.005 g/L to 10 g/L of at least one surfactant selected from a group consisting of alkylbenzene sulfonic acid and alkylbenzene sulfonate; and 10 g/L to 300 g/L of copper sulfate, is used to remove oxide film, and then reused by being electrolyzed and adding the oxidant, the additive and the surfactant in amounts equivalent to consumed amounts.	06-20-2013

Yoshinobu Tarutani, Tokyo JP

Patent application number	Description	Published
20100006825	SUPERCONDUCTING JUNCTION ELEMENT AND SUPERCONDUCTING JUNCTION CIRCUIT - A superconducting junction element has a lower electrode formed by a superconductor layer, a barrier layer provided on a portion of a surface of the lower electrode, an upper electrode formed by a superconductor and covering the barrier layer, and a superconducting junction formed by the lower electrode, the barrier layer and the upper electrode. A critical current density of the superconducting junction is controlled based on an area of the lower electrode.	01-14-2010

Yoshio Tarutani, Osaka JP

Patent application number	Description	Published
20080220308	Source blank for stainless steel three-ply clad sheet, production methods of clad steel plate and sheet for solid polymer type fuel cell separator, and solid polymer type fuel cell separator - Provided is a first method for producing a source blank for a clad steel sheet composed of a stainless steel containing 0 to 0.3% B as a core component and a stainless steel containing 0.3 to 2.5% B as face components, the face components each being combined with each of major faces of the core component through the following steps and the like: Step 1: disposing, on side end faces of each face component, protectors with a length greater than a length of the side end faces, disposing tabs each in abutting relation with an extension of the protector's face to abut on the side end face of the face component, and performing bonding between the tabs and the protectors and between the face component and the protectors; Step 2: each composite, which is obtained by removing the tabs and extended portions of the protectors bonded with the tabs from the workpiece after Step 1, is piled on either major face of the core component to thereby obtain a combined block; and Step 3: performing bonding at boundary regions on peripheral four side end faces of the combined block. Further, there is provided a second method for producing a stainless steel three-ply clad sheet for a fuel cell separator, comprising heating the source blank produced by the first method and then performing rough rolling, hot rolling and cold rolling thereto, whereby the clad steel sheet for the fuel cell separator or a solid polymer type fuel cell separator thereby is obtained. According to this, a source blank for a stainless steel three-ply clad sheet and a separator steel sheet, including B-containing steel as a face layer, which are most suitably used as a solid polymer type fuel cell separator can be provided.	09-11-2008