Shimakura, JP
Masami Shimakura, Machida-Shi JP
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20090307364 | COMMUNICATION APPARATUS AND CONTROL METHOD - In a communication apparatus for communicating based on a communication protocol, context information relating to a connection of the communication protocol is held and managed. The timer used in the communication protocol is used for time-count process, a notification of timeout of the timer is given in advance, and when the notification of timeout is given in advance, an instruction for pre-load is given so that the context information is stored in the cache memory. Thereby, upon timeout of the timer, the context information is stored in the cache memory. | 12-10-2009 |
20090323543 | COMMUNICATION APPARATUS AND METHOD OF CALCULATING ROUND TRIP TIME - A communication apparatus which transmits data to a transmission destination, and receives, from the transmission destination, an acknowledgement indicating that the data has been received stores, in a memory, first specific data for specifying a plurality of transmission data, and transmission time data indicating transmission times of the plurality of transmission data. Based on second specific data contained in the acknowledgement, the communication apparatus searches the memory for first specific data for specifying transmission data corresponding to the acknowledgement, and calculates a round trip time based on the transmission time of the transmission data specified by the found first specific data, and a reception time at which the acknowledgement is received. | 12-31-2009 |
20100228754 | SEARCH ENGINE AND SEARCH METHOD - A search engine has a plurality of comparators. Discriminants are set in the comparators for each search, and the comparators are selectively connected. | 09-09-2010 |
Masanobu Shimakura, Kawasaki JP
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20110058552 | Multicast Control Technique Using MPLS - In this invention, an idea of the reverse direction label switched path (RLP) in Multi-Protocol Label Switching (MPLS) is applied to the multicast transmission to improve the management transmission in the multicast transmission, and to easily carry out an additional connection and disconnection. Specifically, in the reverse direction symmetric routing Label switched Path (LP), a virtual label in addition to an input label and an output label is used for the reverse direction routing. However, in this invention, instead of the virtual label, a multicast address to which a client terminal, which is connected to a head of the path on the reverse direction routing, and corresponds to a leaf in the multicast tree, is connected, is registered, as a multicast index, in routers on the path. Then, when receiving a multicast packet including a label and a multicast address, an output label corresponding to the received label is identified, thereby a destination link is identified. | 03-10-2011 |
Satoshi Shimakura, Tokyo JP
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20140257764 | Construction Field Management Method and Construction Field Management Device - The object is to enable easy acquisition of an element that is not design data. The technique is characterized in that when generating construction field management information used to manage a construction field, a construction field management device acquires measurement data that is three-dimensional shape data measured by a measurement device, and compares design data created by a designer with the acquired measurement data, thus extracting non-design data that is not the design data, from the measurement data. Also, as the non-design data, data of a scaffolding/tool and a component of the design data in a temporarily placed state are extracted, and the status of these is analyzed and displayed on a display unit. | 09-11-2014 |
Tomokazu Shimakura, Tokyo JP
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20140319371 | SAMPLE HOLDER AND CHARGED PARTICLE BEAM APPARATUS USING SAME - The disclosed invention provides a sample holder capable of reducing or preventing the influence of a charged particle beam deflected by applying a magnetic field to a sample and provided with means for simply switching between a mode of observing a sample while applying a magnetic field to the sample, and a mode free of a magnetic field in which a magnetic field becomes zero completely. The sample holder includes a magnetic field generating element including three or more magnetic gaps for applying a magnetic field to a sample, a cantilever-beam-shaped sample holding element that holds a sample on one end thereof, and a moving mechanism that adjusts a relative position between a sample and a magnetic gap. The magnetic gaps can be placed along an optical axis of a charged particle beam. | 10-30-2014 |
Tomokazu Shimakura, Kawasaki JP
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20100181480 | CHARGED PARTICLE BEAM DEVICE - According to the present invention, a charged particle beam device has an unlimitedly rotatable sample stage and an electric field control electrode for correcting electric field distortion at a sample peripheral part. A voltage is applied to a sample on the unlimitedly rotatable sample stage through a retarding electrode that is in contact with a holder receiver at a rotation center of a rotary stage. An equipotential plane on the electric field control electrode is varied by applying a voltage to the electric field control electrode, and following this the equipotential plane at a sample edge is corrected, which enables the sample to be observed as far as its edge. | 07-22-2010 |
20110284746 | CHARGED PARTICLE BEAM DEVICE - A charged particle beam device has a tilt detection unit that detects a tilt of a sample surface and an E×B deflector in which an electric field and a magnetic field are overlapped with each other and which causes, according to the detected tilt of the sample surface, the sample surface to be perpendicularly irradiated with an irradiation charged particle beam while, at the same time, aligning the trajectory of the charged particle beam with the optical axis centers of an irradiation optical system and an imaging optical system; thereby, the charged particle beam device can prevent problems possibly occurring in cases where a sample stage is tilted or a sample surface is undulating and can enable an accurate image to be acquired. | 11-24-2011 |
Toshiaki Shimakura, Tokyo JP
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20090065099 | CHEMICAL CONVERSION TREATING AGENT AND SURFACE TREATED METAL - It is an object of the invention to provide a chemical conversion treating agent containing no chromium and exhibiting high corrosion resistance and excellent stability. | 03-12-2009 |
20090078340 | Method of chemical treatment and chemically treated member - A chemical treatment method in which an object to be treated is treated with a chemical treating agent to form a chemical conversion coating, in which the object to be treated has at least one aluminum-plated steel sheet and at least one member selected from the group consisting of cold-rolled steel sheets, zinc-plated steel sheets, and aluminum sheets and the chemical treating agent is one which has zirconium, fluorine, and an aminated silane coupling agent and in which the zirconium content is 100-700 ppm in terms of metal amount and the fluorine/zirconium ratio is 3.5-7.0 by mole. A sufficient coating amount can be ensured on the surface of a zinc deposit, cold-rolled steel sheet, zinc-plated steel sheet, aluminum-plated steel sheet, or the like and a chemical conversion coating having sufficient base-hiding properties and sufficient adhesion can be formed. | 03-26-2009 |
20130284049 | INORGANIC CHROMIUM-FREE METAL SURFACE TREATMENT AGENT - An inorganic chromium-free metal surface treatment agent contains a compound X containing a metal X | 10-31-2013 |
Toshiaki Shimakura, Ichikawa-Shi JP
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20080286470 | CHEMICAL CONVERSION COATING AGENT AND SURFACE-TREATED METAL - It is an object of the present invention to provide a chemical conversion coating agent which places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc and aluminum. | 11-20-2008 |
20100038250 | CHEMICAL CONVERSION COATING AGENT AND SURFACE-TREATED METAL - It is an object of the present invention to provide a chemical conversion coating agent containing no chromium and capable of applying good chemical conversion treatment which is equal to or more than chemical conversion treatment by zinc phosphate to all metals such as iron, zinc and aluminum. | 02-18-2010 |
Yasuhisa Shimakura, Tokyo JP
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20090034901 | OPTICAL FIBER SENSOR - An optical fiber sensor that can detect a liquid level or detect a property of liquid with high reliability even under a frequently vibrational environment. The optical fiber sensor includes an optical fiber that includes a core having an area where a grating is formed and a clad, and is disposed so that at least a part of the area with the grating is immersed in liquid, a light source for making light incident to the optical fiber so that a cladding mode light having a wavelength band is occurred by the grating, and a light receiving unit for detecting the intensity of light which is incident from the light source to the optical fiber and transmitted through the grating. | 02-05-2009 |
20120087653 | OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION METHOD - An optical transmission apparatus in which, even if a change is made in the bit rate of modulation signals that are inputted to a plurality of optical modulating units, the modulation signals do not suffer from phase shifting, thereby enabling achieving synchronous modulation in the plurality of optical modulating units and enabling achieving a high optical signal quality. The optical transmission apparatus includes: a plurality of optical modulating units that modulate light on the basis of modulation signals; and a delay amount control unit that, based on bit rate information indicating a bit rate of the modulation signals, controls delay amounts of the modulation signals to be inputted to the plurality of optical modulating units, such that the light is modulated in a synchronous manner in the plurality of optical modulating units. | 04-12-2012 |
20120230679 | OPTICAL TRANSMITTER - An optical transmitter includes: a data generating unit configured to generate a plurality of modulating signals; a driver configured to amplify the plurality of modulating signals generated by the data generating unit; a phase shifter configured to control a phase of at least one signal among the plurality of modulating signals to be input to the driver; a plurality of optical modulators connected in series to each other, and configured to modulate an optical signal on a basis of each of the modulating signals amplified by the driver; an optical coupler configured to branch the optical signal modulated by the optical modulator arranged at a last stage in the series; a photodiode configured to detect the optical signal branched by the optical coupler and convert the optical signal into an electric signal; and a phase control unit configured to control an amount of phase control of the phase shifter to maximize an intensity of the electric signal converted by the photodiode. | 09-13-2012 |
Yasuhisa Shimakura, Chiyoda-Ku JP
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20120153132 | ELEMENT CARRIER AND LIGHT RECEIVING MODULE - An element carrier has a mounting surface where at least one element outputting a high-frequency signal is disposed. A first dielectric layer has a first side surface partially forming the mounting surface and a first main surface connecting to the first side surface and extending in an intersecting direction intersecting with the mounting surface. A first wiring pattern is provided on the first main surface and extends from the first side surface. A second dielectric layer has a second side surface partially forming the mounting surface and a second main surface connecting to the second side surface and extending in the intersecting direction, and is provided on a part of the first main surface of the first dielectric layer where the first wiring pattern is provided. A second wiring pattern is provided on the second main surface of the second dielectric layer and extends from the second side surface. | 06-21-2012 |