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).

  • Patent number: 11178872
    Abstract: A compound represented by a formula (I), or a salt thereof: wherein Ar1 is a substituted or unsubstituted C6-10 aryl group, or the like; the number of X1 groups that can be substituted on Ar1 is 5 or less; X1 is a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like; Z is a single bond, a sulfur atom, or an oxygen atom; A is a nitrogen atom or a carbon atom; X2 is a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like; m is an integer of 0 to 2 when A is a nitrogen atom and is an integer of 0 to 3 when A is a carbon atom; R1 to R4 and R6 to R9 each independently represent a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group, or the like; R5 is a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group, or the like; k represents the number of CR6R7 moieties in a parenthesis and is 0 or 1; h represents the number of CR3R4 moieties in a parenthesis and is 0 or 1; and Ar is a substituted or unsubstituted C6-10 aryl group, or the like.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: November 23, 2021
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Jun Iwata, Fumiya Nishio, Takao Iwasa, Satoshi Makino, Koichi Hirata
  • Publication number: 20210310651
    Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus includes an outer tube and an inner tube concentrically disposed inside the outer tube. The inner tube is disposed so that an oxygen-containing gas is discharged from an opened end of the inner tube in an axial direction of the inner tube. The outer tube extends beyond the opened end of the inner tube in the axial direction of the inner tube so that a hydrogen gas passes through a space between an inner circumferential surface of the outer tube and an outer circumferential surface of the inner tube.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi HIRATA, Daisuke SAKUMA, Noriyuki UENO
  • Patent number: 11098893
    Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus includes an outer tube and an inner tube concentrically disposed inside the outer tube. The inner tube is disposed so that an oxygen-containing gas is discharged from an opened end of the inner tube in an axial direction of the inner tube. The outer tube extends beyond the opened end of the inner tube in the axial direction of the inner tube so that a hydrogen gas passes through a space between an inner circumferential surface of the outer tube and an outer circumferential surface of the inner tube.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 24, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Hirata, Daisuke Sakuma, Noriyuki Ueno
  • Patent number: 10760636
    Abstract: A second dynamic vibration absorber is higher in resonance frequency than a first dynamic vibration absorber. At least one of the resonance frequency of the first dynamic vibration absorber or the resonance frequency of the second dynamic vibration absorber is shifted from associated at least one of the first resonance frequency or the second resonance frequency such that a peak frequency of antiresonance occurring in a higher frequency region of the first dynamic vibration absorber than the resonance frequency of the first dynamic vibration absorber is substantially different from that of antiresonance occurring in a lower frequency region of the second dynamic vibration absorber than the resonance frequency of the second dynamic vibration absorber.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: September 1, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Kiyonori Nagato, Takuya Kikuchi, Tsunehiro Mori, Koichi Hirata, Akira Sumitani, Rumiko Yamada, Toru Morishima, Rei Enokizono, Yuichi Shirasuna
  • Publication number: 20200170254
    Abstract: The present invention provides a compound represented by formula (I) (in formula (I), R1 represents a substituted or unsubstituted C1-6 alkyl group, R2 represents a substituted or unsubstituted C1-8 alkyl group, R3 represents a hydrogen atom or a substituted or unsubstituted C1-6 alkyl group, A represents a substituted or unsubstituted o-phenylene group, a substituted or unsubstituted bezylene group, or the like, B represents an oxy group, a substituted or unsubstituted oxymethylene group, or the like, and Q represents a substituted or unsubstituted o-phenylene group), or a salt thereof.
    Type: Application
    Filed: June 12, 2018
    Publication date: June 4, 2020
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Kotaro Shibayama, Hiroto SUZUKI, Takao IWASA, Koichi HIRATA, Ryutaro KIYOTA
  • Publication number: 20200163336
    Abstract: A pest control agent according to the present invention contains a compound of formula (I) (in the formula, Ar represents a substituted or unsubstituted C6-10 aryl group, R1 represents a cyano group or a substituted or unsubstituted thiocarbamoyl group, R2 represents a hydrogen atom, a halogeno group, a substituted or unsubstituted C1-6 alkyl group, a hydroxyl group, or a substituted or unsubstituted C1-6 alkoxy group, R3 represents a hydrogen atom, a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like, and Q represents a cyclic amino group) or a salt thereof.
    Type: Application
    Filed: August 20, 2018
    Publication date: May 28, 2020
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Fumiya NISHIO, Jun IWATA, Satoshi MAKINO, Takao IWASA, Koichi HIRATA, Isami HAMAMOTO
  • Patent number: 10648662
    Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus, capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus, includes an outer pipe, an inner pipe disposed concentrically with the outer pipe, and a stabilizer configured to throttle a space between the outer pipe and the inner pipe. The inner pipe includes an inner pipe end part with an axial opening hole and a circumferential opening hole formed therein, the axial opening hole penetrating in an axial direction of the inner pipe, the circumferential opening hole penetrating in a radial direction of the inner pipe. A hydrogen gas flows through the inner pipe. The circumferential opening hole lets the hydrogen gas flow out from the inner pipe in the radial direction of the inner pipe.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: May 12, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CHUGAI RO CO., LTD.
    Inventors: Nozomi Maitani, Daisuke Sakuma, Koichi Hirata, Noriyuki Ueno
  • Patent number: 10627107
    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: Grant
    Filed: November 28, 2017
    Date of Patent: April 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Hirata, Daisuke Sakuma, Kenshiro Mimura
  • Patent number: 10612615
    Abstract: A second dynamic vibration absorber is higher in resonance frequency than a first dynamic vibration absorber. At least one of a ratio of a mass of a body of the first dynamic vibration absorber to a reciprocating inertial mass of the reciprocative rotation mechanism or a ratio of a mass of a body of the second dynamic vibration absorber to the reciprocating inertial mass of the reciprocative rotation mechanism is set such that a peak frequency of antiresonance occurring in a higher frequency region of the first dynamic vibration absorber than the resonance frequency of the first dynamic vibration absorber is substantially different from that of antiresonance occurring in a lower frequency region of the second dynamic vibration absorber than the resonance frequency of the second dynamic vibration absorber.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: April 7, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Kiyonori Nagato, Toru Morishima, Takuya Kikuchi, Tsunehiro Mori, Rei Enokizono, Yuichi Shirasuna, Koichi Hirata, Akira Sumitani, Rumiko Yamada
  • Patent number: 10548316
    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: Grant
    Filed: June 17, 2016
    Date of Patent: February 4, 2020
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hikaru Aoyama, Maki Matsui, Keita Sakanishi, Takao Iwasa, Tomomi Kobayashi, Koichi Hirata
  • Publication number: 20190191702
    Abstract: A compound represented by a formula (I), or a salt thereof: wherein Ar1 is a substituted or unsubstituted C6-10 aryl group, or the like; the number of X1 groups that can be substituted on Ar1 is 5 or less; X1 is a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like; Z is a single bond, a sulfur atom, or an oxygen atom; A is a nitrogen atom or a carbon atom; X2 is a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like; m is an integer of 0 to 2 when A is a nitrogen atom and is an integer of 0 to 3 when A is a carbon atom; R1 to R4 and R6 to R9 each independently represent a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group, or the like; R5 is a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group, or the like; k represents the number of CR6R7 moieties in a parenthesis and is 0 or 1; h represents the number of CR3R4 moieties in a parenthesis and is 0 or 1; and Ar is a substituted or unsubstituted C6-10 aryl group, or the like.
    Type: Application
    Filed: May 2, 2017
    Publication date: June 27, 2019
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Jun IWATA, Fumiya NISHIO, Takao IWASA, Satoshi MAKINO, Koichi HIRATA
  • Publication number: 20190120317
    Abstract: A second dynamic vibration absorber is higher in resonance frequency than a first dynamic vibration absorber. At least one of the resonance frequency of the first dynamic vibration absorber or the resonance frequency of the second dynamic vibration absorber is shifted from associated at least one of the first resonance frequency or the second resonance frequency such that a peak frequency of antiresonance occurring in a higher frequency region of the first dynamic vibration absorber than the resonance frequency of the first dynamic vibration absorber is substantially different from that of antiresonance occurring in a lower frequency region of the second dynamic vibration absorber than the resonance frequency of the second dynamic vibration absorber.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 25, 2019
    Inventors: Kiyonori Nagato, Takuya Kikuchi, Tsunehiro Mori, Koichi Hirata, Akira Sumitani, Rumiko Yamada, Toru Morishima, Rei Enokizono, Yuichi Shirasuna
  • Publication number: 20190120318
    Abstract: A second dynamic vibration absorber is higher in resonance frequency than a first dynamic vibration absorber. At least one of a ratio of a mass of a body of the first dynamic vibration absorber to a reciprocating inertial mass of the reciprocative rotation mechanism or a ratio of a mass of a body of the second dynamic vibration absorber to the reciprocating inertial mass of the reciprocative rotation mechanism is set such that a peak frequency of antiresonance occurring in a higher frequency region of the first dynamic vibration absorber than the resonance frequency of the first dynamic vibration absorber is substantially different from that of antiresonance occurring in a lower frequency region of the second dynamic vibration absorber than the resonance frequency of the second dynamic vibration absorber.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 25, 2019
    Inventors: Kiyonori Nagato, Toru Morishima, Takuya Kikuchi, Tsunehiro Mori, Rei Enokizono, Yuichi Shirasuna, Koichi Hirata, Akira Sumitani, Rumiko Yamada
  • Patent number: 10237525
    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: Grant
    Filed: December 20, 2016
    Date of Patent: March 19, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takashi Kanda, Makoto Hasegawa, Yoji Shiraya, Shingo Ichikawa, Koichi Hirata, Yuusuke Hattori
  • Publication number: 20190072274
    Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus, capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus, includes an outer pipe, an inner pipe disposed concentrically with the outer pipe, and a stabilizer configured to throttle a space between the outer pipe and the inner pipe. The inner pipe includes an inner pipe end part with an axial opening hole and a circumferential opening hole formed therein, the axial opening hole penetrating in an axial direction of the inner pipe, the circumferential opening hole penetrating in a radial direction of the inner pipe. A hydrogen gas flows through the inner pipe. The circumferential opening hole lets the hydrogen gas flow out from the inner pipe in the radial direction of the inner pipe.
    Type: Application
    Filed: August 9, 2018
    Publication date: March 7, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nozomi MAITANI, Daisuke SAKUMA, Koichi HIRATA, Noriyuki UENO
  • Publication number: 20190072273
    Abstract: The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus includes an outer tube and an inner tube concentrically disposed inside the outer tube. The inner tube is disposed so that an oxygen-containing gas is discharged from an opened end of the inner tube in an axial direction of the inner tube. The outer tube extends beyond the opened end of the inner tube in the axial direction of the inner tube so that a hydrogen gas passes through a space between an inner circumferential surface of the outer tube and an outer circumferential surface of the inner tube.
    Type: Application
    Filed: August 13, 2018
    Publication date: March 7, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi HIRATA, Daisuke SAKUMA, Noriyuki UENO
  • 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