Patents by Inventor Koichi Hirata

Koichi Hirata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180241979
    Abstract: A luminance indicated by an HDR signal is appropriately displayed. A first image processing unit (22) converts, in accordance with a maximum luminance level indicated by an HDR signal input to the first image processing unit (22), a gradation performance indicated by the HDR signal into a prescribed gradation performance according to a display panel (10), and a panel control unit (27) converts, in accordance with the maximum luminance level indicated by the HDR signal and a maximum luminance displayable by the display panel (10), a gradation value indicated by the HDR signal into a gradation value displayable by the display panel (10).
    Type: Application
    Filed: December 20, 2016
    Publication date: August 23, 2018
    Inventors: TAKASHI KANDA, MAKOTO HASEGAWA, YOJI SHIRAYA, SHINGO ICHIKAWA, KOICHI HIRATA, YUUSUKE HATTORI
  • Publication number: 20180160686
    Abstract: The present invention provides a compound represented by formula (I), (in the formula, A1 and A2 each independently represents a carbon atom or a nitrogen atom; X1 represents an unsubstituted or substituted C1-6 alkyl group or the like; n represents an integer of 0 to 4; R1 represents an unsubstituted or substituted C1-6 alkylthio group or the like; B1 and B4 each independently represent a carbon atom, a nitrogen atom or the like; R2 and R3 each independently represent a hydrogen atom, a halogeno group or the like; Ar represents an unsubstituted or substituted C6-10 aryl group or the like) or a salt thereof, and a harmful organism control agent including thereof.
    Type: Application
    Filed: June 17, 2016
    Publication date: June 14, 2018
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Hikaru AOYAMA, Maki MATSUI, Keita SAKANISHI, Takao IWASA, Tomomi KOBAYASHI, Koichi HIRATA
  • Publication number: 20180156451
    Abstract: A hydrogen gas burner structure includes a first cylinder tube, a second cylinder tube, a third cylinder tube, and an ignition device. An inside of the first cylinder tube is configured such that hydrogen gas flows. A space between the first cylinder tube and the second cylinder tube is configured such that a first combustion-supporting gas containing oxygen gas flows. A space between the second cylinder tube and the third cylinder tube is configured such that a second combustion-supporting gas containing oxygen gas flows. The ignition device is configured to ignite mixed gas. The tip of the first cylinder tube is located upstream of the tips of the second and third cylinder tubes in a gas flow direction in which the hydrogen gas and the first combustion-supporting gas and the second combustion-supporting gas flow.
    Type: Application
    Filed: November 28, 2017
    Publication date: June 7, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi HIRATA, Daisuke SAKUMA, Kenshiro MIMURA
  • Patent number: 9926998
    Abstract: An engine piston structure includes: a piston (1); a connecting rod (10) having a small end part (10a) coupled to the piston (1), and having a large end part (10b) coupled to a crankshaft; a piston pin (2) through which the piston (1) and the small end part (10a) of the connecting rod (10) are coupled together and which has a hollow cross section; and at least one dynamic vibration absorber (20) provided inside the piston pin (2) to reduce resonance of the piston (1), the piston pin (2), and the small end part (10a) of the connecting rod (10) in combination with respect to the large end part (10b) of the connecting rod (10) during a combustion stroke.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: March 27, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yasunori Kanda, Tsunehiro Mori, Yasuhiro Sudou, Masakazu Kikuchi, Kazuo Toyoda, Tetsuya Hanzawa, Yukiyoshi Fukuda, Akira Sumitani, Masahiro Koizumi, Koichi Hirata, Shuji Takuma, Kouji Kubo, Kazuya Nishimori
  • Patent number: 9556821
    Abstract: A piston structure for an engine is provided. The piston structure includes a piston for reciprocating within a cylinder, a connecting rod having a smaller-end part and a larger-end part in both ends, respectively, the smaller-end part coupled to the piston, the larger-end part coupled to a crankshaft, a cross-sectionally hollow piston pin coupling the piston to the smaller-end part, and a dynamic absorber provided inside the piston pin, including a fixed part fixed to the piston pin and a movable part pivotally supported by the fixed part, and for suppressing the piston, the piston pin, and the smaller-end part from integrally resonating with respect to the larger-end part of the connecting rod on combustion stroke. The dynamic absorber includes an assemblable dynamic absorber in which the movable part is formed by attaching a mass adjusting part to the fixed part.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: January 31, 2017
    Assignee: Mazda Motor Corporation
    Inventors: Koichi Hirata, Mitsutaka Yamaya, Shuji Takuma, Yasunori Kanda, Tatsuya Kobayashi, Takeshi Motomuro
  • Publication number: 20160366662
    Abstract: A device appropriate as a target for cancellation of registration (pairing) is easily selected. A server (1) includes a pairing management unit (11) that selects a cancellation candidate among paired devices in a case where a request for pairing is received in a state where the number of pairing devices reaches an upper limit, and presents the cancellation candidate to a user to make the user select whether to cancel pairing of the cancellation candidate.
    Type: Application
    Filed: January 29, 2015
    Publication date: December 15, 2016
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Keiichi KOBAYASHI, Masayasu NAKAZAWA, Koichi HIRATA, Shusaku MIZUKAMI, Takanori KONNO, Yuji KAMON
  • Patent number: 9474740
    Abstract: wherein, in formula (III), X1 represents a C1-6 alkyl group which is unsubstituted or has a substituent, or other groups; m1 represents any integer of 0 to 5; A represents an oxygen atom or a sulfur atom; each of R1 and R2 independently represents a hydrogen atom, a C1-6 alkyl group which is unsubstituted or has a substituent, or other groups; R5 represents a hydrogen atom or a C1-6 alkyl group which is unsubstituted or has a substituent; B represents an oxygen atom or a sulfur atom; Q2 represents a C7-11 aralkyl group which is unsubstituted or has a substituent X2, or other groups; and each of R3a, R3b, R4a, and R4b independently represents a hydrogen atom, a C1-6 alkyl group which is unsubstituted or has a substituent, or other groups.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: October 25, 2016
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Takao Iwasa, Koichi Hirata
  • Patent number: 9393020
    Abstract: A ligator for ligating body duct(s), said ligator enabling quick, easy and damage-free repetition of ligation and release of one or more body ducts in a body cavity through an operation outside the body cavity, and having an excellent performance of blocking the flow of a body fluid such as blood or lymph in a body duct. In an abdominal surgery, the ligator can be provided at such a position as not disturbing the surgery per se or hindering the vision during the surgery, while leaving the back-end thereof outside the body cavity, and can be operated outside the body cavity. In an endoscopic surgery, the ligator can be inserted from an opening that is a surgical wound while leaving the back-end thereof outside the body cavity, and can be operated outside the body cavity.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: July 19, 2016
    Assignee: Sapporo Medical University
    Inventors: Toru Mizuguchi, Koichi Hirata, Masaki Kawamoto, Makoto Meguro
  • Patent number: 9347396
    Abstract: A piston pin structure for an engine is provided, which suppresses integral resonance of a piston, a piston pin, and a smaller end part of a connecting rod with respect to a larger end part of the connecting rod on the combustion stroke, as well as suppresses an increase of noise on other strokes, and restricts the fixed dynamic absorber inside the piston pin from coming off and ensures a coming-off function. The piston pin structure may include a dynamic absorber including a fixed part fixed to a piston pin, a movable part extending in the axial direction of the piston pin, and a supporting part for swingably supporting the movable part with respect to the fixed part. A restriction mechanism for mechanically restricting the movement of the dynamic absorber in the axial direction may also be included.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 24, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Koichi Hirata, Yasunori Kanda, Kouji Kubo, Mitsutaka Yamaya, Shuji Takuma, Tatsuya Kobayashi, Takeshi Motomuro
  • Publication number: 20160008321
    Abstract: wherein, in formula (III), X1 represents a C1-6 alkyl group which is unsubstituted or has a substituent, or other groups; ml represents any integer of 0 to 5; A represents an oxygen atom or a sulfur atom; each of R1 and R2 independently represents a hydrogen atom, a C1-6 alkyl group which is unsubstituted or has a substituent, or other groups; R5 represents a hydrogen atom or a C1-6 alkyl group which is unsubstituted or has a substituent; B represents an oxygen atom or a sulfur atom; Q2 represents a C7-11 aralkyl group which is unsubstituted or has a substituent X2, or other groups; and each of R3a, R3b, R4a, and R4b independently represents a hydrogen atom, a C1-6 alkyl group which is unsubstituted or has a substituent, or other groups.
    Type: Application
    Filed: February 28, 2014
    Publication date: January 14, 2016
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Takao Iwasa, Koichi HIRATA
  • Publication number: 20150219181
    Abstract: An engine piston structure includes: a piston (1); a connecting rod (10) having a small end part (10a) coupled to the piston (1), and having a large end part (10b) coupled to a crankshaft; a piston pin (2) through which the piston (1) and the small end part (10a) of the connecting rod (10) are coupled together and which has a hollow cross section; and at least one dynamic vibration absorber (20) provided inside the piston pin (2) to reduce resonance of the piston (1), the piston pin (2), and the small end part (10a) of the connecting rod (10) in combination with respect to the large end part (10b) of the connecting rod (10) during a combustion stroke.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 6, 2015
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasunori Kanda, Tsunehiro Mori, Yasuhiro Sudou, Masakazu Kikuchi, Kazuo Toyoda, Tetsuya Hanzawa, Yukiyoshi Fukuda, Akira Sumitani, Masahiro Koizumi, Koichi Hirata, Shuji Takuma, Kouji Kubo, Kazuya Nishimori
  • Publication number: 20150075479
    Abstract: A piston pin structure for an engine is provided, which suppresses integral resonance of a piston, a piston pin, and a smaller end part of a connecting rod with respect to a larger end part of the connecting rod on the combustion stroke, as well as suppresses an increase of noise on other strokes, and restricts the fixed dynamic absorber inside the piston pin from coming off and ensures a coming-off function. The piston pin structure may include a dynamic absorber including a fixed part fixed to a piston pin, a movable part extending in the axial direction of the piston pin, and a supporting part for swingably supporting the movable part with respect to the fixed part. A restriction mechanism for mechanically restricting the movement of the dynamic absorber in the axial direction may also be included.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 19, 2015
    Inventors: Koichi Hirata, Yasunori Kanda, Kouji Kubo, Mitsutaka Yamaya, Shuji Takuma, Tatsuya Kobayashi, Takeshi Motomuro
  • Publication number: 20150075478
    Abstract: A piston structure for an engine is provided. The piston structure includes a piston for reciprocating within a cylinder, a connecting rod having a smaller-end part and a larger-end part in both ends, respectively, the smaller-end part coupled to the piston, the larger-end part coupled to a crankshaft, a cross-sectionally hollow piston pin coupling the piston to the smaller-end part, and a dynamic absorber provided inside the piston pin, including a fixed part fixed to the piston pin and a movable part pivotally supported by the fixed part, and for suppressing the piston, the piston pin, and the smaller-end part from integrally resonating with respect to the larger-end part of the connecting rod on combustion stroke. The dynamic absorber includes an assemblable dynamic absorber in which the movable part is formed by attaching a mass adjusting part to the fixed part.
    Type: Application
    Filed: August 20, 2014
    Publication date: March 19, 2015
    Inventors: Koichi Hirata, Mitsutaka Yamaya, Shuji Takuma, Yasunori Kanda, Tatsuya Kobayashi, Takeshi Motomuro
  • Publication number: 20130267965
    Abstract: A ligator for ligating body duct(s), said ligator enabling quick, easy and damage-free repetition of ligation and release of one or more body ducts in a body cavity through an operation outside the body cavity, and having an excellent performance of blocking the flow of a body fluid such as blood or lymph in a body duct. In an abdominal surgery, the ligator can be provided at such a position as not disturbing the surgery per se or hindering the vision during the surgery, while leaving the back-end thereof outside the body cavity, and can be operated outside the body cavity. In an endoscopic surgery, the ligator can be inserted from an opening that is a surgical wound while leaving the back-end thereof outside the body cavity, and can be operated outside the body cavity.
    Type: Application
    Filed: October 5, 2011
    Publication date: October 10, 2013
    Applicant: SAPPORO MEDICAL UNIVERSITY
    Inventors: Toru Mizuguchi, Koichi Hirata, Masaki Kawamoto, Makoto Meguro
  • Patent number: 8479249
    Abstract: A television receiver for content with which genre information is associated includes: a basic picture quality information receiving section which associates, with a single piece of genre information, a plurality of candidates for picture quality information regarding the content with which the genre information is associated, and which receives basic picture quality information indicating which one of the plurality of candidates is based on; a picture quality correction information creating section which receives picture quality correction information for further correcting the picture quality, and which creates, in accordance with the basic picture quality information and the picture quality correction information, information for correcting the picture quality; and a picture processing section which corrects the picture quality and which creates a picture to be displayed by a liquid crystal display device.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: July 2, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Koike, Kohichi Takaku, Takamasa Shimizu, Masahiko Takiguchi, Akiyoshi Ohya, Atsushi Ogawa, Koichi Hirata, Osamu Fujii
  • Publication number: 20120233634
    Abstract: A television receiver for content with which genre information is associated includes: a basic picture quality information receiving section which associates, with a single piece of genre information, a plurality of candidates for picture quality information regarding the content with which the genre information is associated, and which receives basic picture quality information indicating which one of the plurality of candidates is based on; a picture quality correction information creating section which receives picture quality correction information for further correcting the picture quality, and which creates, in accordance with the basic picture quality information and the picture quality correction information, information for correcting the picture quality; and a picture processing section which corrects the picture quality and which creates a picture to be displayed by a liquid crystal display device.
    Type: Application
    Filed: September 22, 2010
    Publication date: September 13, 2012
    Inventors: Akira Koike, Kohichi Takaku, Takamasa Shimizu, Masahiko Takiguchi, Akiyoshi Ohya, Atsushi Ogawa, Koichi Hirata, Osamu Fujii
  • Publication number: 20120206493
    Abstract: A television receiver includes a genre identification section that identifies a genre of contents, a video processing section that displays the contents upon correcting the contents with an image quality parameter set in accordance with the identified genre in advance, a display control section that displays, while the contents is displayed, an adjustment item for adjusting a value of the image quality parameter, a parameter value adjustment section that adjusts the value of the image quality parameter based on entry by a user, and a parameter value changing section that changes the value of the image quality parameter, when the identified genre changes to another genre, to a value set in advance corresponding to a genre after the genre changes, and the parameter value changing section changes the value of the image quality parameter in a different period of time depending on whether or not the adjustment item is displayed.
    Type: Application
    Filed: October 26, 2010
    Publication date: August 16, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akira Koike, Kohichi Takaku, Takamasa Shimizu, Masahiko Takiguchi, Akiyoshi Ohya, Atsushi Ogawa, Koichi Hirata, Osamu Fujii
  • Patent number: 7640740
    Abstract: A high efficient stirling engine with excellent thermal efficiency, which can increase the heating temperature of a high temperature section, is obtained by preventing the heat from being lost in a member connecting the high temperature section and a low temperature section. The high temperature section 5 and the member (a regenerator housing 16) connecting the high temperature section and the low temperature section are formed to have a split configuration by using different materials for the each, in which the high temperature section 5 is formed of a heat resistant/high heat conductive material having high heat resistance property and high heat conductivity, the regenerator housing 16 connecting the high temperature section 5 and the low temperature section 7 is formed of a heat resistant/low heat conductive material having low heat conductivity, and the both are bonded integrally to each other to obtain an integral sealed structure.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: January 5, 2010
    Assignees: Japan Aerospace Exploration Agency, Panasonic Corporation, National Maritime Research Institute
    Inventors: Takeshi Hoshino, Teruyuki Akazawa, Koichi Hirata, Masakuni Kawada
  • Publication number: 20080282693
    Abstract: A high efficient stirling engine with excellent thermal efficiency, which can increase the heating temperature of a high temperature section, is obtained by preventing the heat from being lost in a member connecting the high temperature section and a low temperature section. The high temperature section 5 and the member (a regenerator housing 16) connecting the high temperature section and the low temperature section are formed to have a split configuration by using different materials for the each, in which the high temperature section 5 is formed of a heat resistant/high heat conductive material having high heat resistance property and high heat conductivity, the regenerator housing 16 connecting the high temperature section 5 and the low temperature section 7 is formed of a heat resistant/low heat conductive material having low heat conductivity, and the both are bonded integrally to each other to obtain an integral sealed structure.
    Type: Application
    Filed: October 29, 2004
    Publication date: November 20, 2008
    Inventors: Takeshi Hoshino, Teruyuki Akazawa, Koichi Hirata, Masakuni Kawada
  • Patent number: 7125787
    Abstract: A gate electrode includes a first polysilicon film remaining on a first oxide film, a part of a second polysilicon layer 8 superimposed on the polysilicon layer, and a part of the second polysilicon layer partially extending over second gate oxide films. Thus, the thickness of the gate electrode on the first gate oxide film is the same as that of the gate electrode of the prior art, but the film thickness t2 of the gate electrode 10 on the second gate oxide films 6A and 6B is thinner than the thickness t1 of the prior art. Therefore, the height gap h2 between the gate electrode 10 and the N+type source layer 11 and the height gap h2 between the gate electrode 10 and the N+type drain layer 12 become smaller compared to those of prior art, leading to the improved flatness of the interlayer oxide film 13.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: October 24, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Nobuyuki Sekikawa, Masaaki Momen, Wataru Andoh, Koichi Hirata