Hotaka
Hiroki Hotaka, Koriyama-Shi JP
Patent application number | Description | Published |
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20110003957 | POLYMERIZABLE COMPOUND, PHOTOCURABLE COMPOSITION, OPTICAL ELEMENT AND OPTICAL HEAD DEVICE - A compound capable of satisfying both high refractive index and high light resistance, and a photocurable composition containing it, are provided. Further, an optical element having good light resistance against blue laser light, and an optical head device using it, are provided. | 01-06-2011 |
20110310721 | POLYMERIZABLE COMPOUND, POLYMERIZABLE COMPOSITION, OPTICAL MATERIAL, OPTICAL ELEMENT AND OPTICAL HEAD DEVICE - A polymerizable compound represented by the following formula (1): | 12-22-2011 |
20150146057 | NEAR-INFRARED CUT FILTER AND SOLID-STATE IMAGING DEVICE - There are provided a near-infrared cut filter that effectively uses near-infrared absorbing glass and a near-infrared absorbing dye and is excellent in a near-infrared shielding property, and a high-sensitivity solid-state imaging device including the same. A near-infrared cut filter includes: a near-infrared absorbing glass substrate made of CuO-containing fluorophosphate glass or CuO-containing phosphate glass; and a near-infrared absorbing layer containing a near-infrared absorbing dye (A) and a transparent resin (B), on at least one principal surface of the near-infrared absorbing glass substrate, wherein an average value of a transmittance in a 400 nm to 550 nm wavelength range is 80% or more, and an average value of a transmittance in a 650 nm to 720 nm wavelength range is 15% or less. | 05-28-2015 |
Hiroki Hotaka, Tokyo JP
Patent application number | Description | Published |
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20150192783 | OPTICAL ELEMENT - An optical element in which transmittance of light monotonically decreases from a center portion toward a peripheral portion, the optical element includes an absorbing material portion made of a material that absorbs a part of light and formed such that its thickness monotonically increases from the center portion toward the peripheral portion; and a transparent material portion made of a material that transmits light and is stacked on the absorbing material portion, a total thickness of the absorbing material portion and the transparent material portion being substantially constant. | 07-09-2015 |
Takeshi Hotaka, Saitama JP
Patent application number | Description | Published |
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20100160489 | RUBBER COMPOSITES FOR TIRE TREADS AND TIRE - The rubber composites for tire treads include silica; carbon black; and oil constituents, wherein a ratio (A index) of silica contents, carbon black contents, and oil constituents contents is found by: | 06-24-2010 |
20110057504 | VEHICLE WHEEL - There is provided a vehicle wheel which can reduce a rolling resistance by rising a tire temperature with a simple structure. A heat-insulation rubber is pasted on all circumference surface of a portion of an outer circumference surface of a rim other than a bead seating portion where a bead portion of a tire closely contacts and a rim flange portion. The heat-insulation rubber suppresses any heat transfer from air in a tire air chamber and from the internal surface of the tire to the rim at the outer circumference surface of the rim which contacts the air in the tire air chamber. | 03-10-2011 |
Toshiaki Hotaka, Tokyo JP
Patent application number | Description | Published |
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20100019411 | METHOD OF MOLDING COMPOSITE MOLDED ARTICLE AND MOLD SYSTEM USED FOR SAME - [Problem] To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. | 01-28-2010 |
20100021709 | POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE THEREOF - A resin composition which provides a molded article capable of effectively blocking off heat rays from sunlight and having excellent transparency, color and moist heat resistance and a molded article thereof. | 01-28-2010 |
20130140735 | Method of Molding Composite Molded Article and Mold System Used for Same - [PROBLEM] To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. | 06-06-2013 |
Toshiaki Hotaka, Chiyoda-Ku JP
Patent application number | Description | Published |
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20120225241 | PROCESS OF MANUFACTURING A CURVED MEMBER HAVING A HIGH-GRADE DESIGN SURFACE AND MEMBER MANUFACTURED BY THE PROCESS - It is an object of the present invention to provide a process capable of manufacturing various types of curved members having a high-grade design surface which are used as glazing members for means of transport such as automobiles at a low cost. | 09-06-2012 |