Patents by Inventor Hiroshi Takada
Hiroshi Takada 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).
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Publication number: 20240418546Abstract: An encoder includes a rotating body that is rotatable around a rotation axis; a disk that is fixed to the rotating body and has a scale formed in a ring shape; an optical module that is disposed to face the disk and detects the scale; a first magnet that is disposed on one side from the disk in a direction of the rotation axis and fixed to the rotating body; and a first magnetic detector that is disposed on a remaining side from the disk in the direction of the rotation axis and detects magnetism of the first magnet.Type: ApplicationFiled: June 10, 2024Publication date: December 19, 2024Inventors: Kenichi SADAKANE, Ryo INOUE, Masanobu KAKIHARA, Takuya SATO, Hiroshi TAKADA
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Patent number: 11860007Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: GrantFiled: December 22, 2022Date of Patent: January 2, 2024Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Takada, Yasushi Yoshida, Shiro Yoshidomi, Masanobu Harada, Yasuhiro Matsutani, Daisuke Furukawa
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Patent number: 11821374Abstract: An internal-combustion engine includes a variable compression ratio mechanism for changing a mechanical compression ratio, and a variable valve timing mechanism for changing the valve timing of an intake valve. When acceleration is demanded, a target compression ratio is set to a lower compression ratio than the target value in a normal condition, and the valve timing is set to the advance angle side. Since the allowable combustion pressure decreases in a prescribed intermediate compression ratio region, if an actual compression ratio exists in the prescribed intermediate compression ratio region in the course of a compression ratio change accompanying acceleration, the variable compression ratio mechanism restricts the intake pressure by increasing a degree of opening of a wastegate valve or reducing a degree of opening of a throttle valve, for example.Type: GrantFiled: June 28, 2017Date of Patent: November 21, 2023Assignee: NISSAN MOTOR CO., LTD.Inventors: Kenji Suzuki, Ryouichi Ootaki, Yukiyo Yamada, Masashi Ono, Hiroshi Takada
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Publication number: 20230302655Abstract: A control panel includes a first controller that performs communication in conformity with an Ethernet standard with a first device via a field network, a second controller that performs safety communication in conformity with an Ethernet standard with a second device that uses a safety signal, a PoE hub that performs PoE power supply to the first device or the second device, and a LAN terminal to which a LAN cable is connected.Type: ApplicationFiled: October 15, 2021Publication date: September 28, 2023Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takuya ICHISE, Hiroshi TAKADA
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Patent number: 11675328Abstract: An encoder includes a disc and a sensor. The disc has a circular surface with a central axis and is rotatable around the central axis. The disc has a slit row provided on the circular surface. The slit row includes slits arranged in a circumferential direction of the circular surface around the central axis and in a radial direction of the circular surface. The sensor is provided opposite to the slit row on circular surface. The sensor has a first light receiver and a second light receiver. The first light receiver is configured to output a first light receiving signal as the slit row rotates along the circumferential direction when the disc rotates around the central axis. The second light receiver is configured to output a second light receiving signal as the slit row moves along the radial direction when the disc rotates around the central axis.Type: GrantFiled: September 6, 2020Date of Patent: June 13, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Takada, Yasushi Yoshida, Yasuhiro Matsutani, Daisuke Furukawa, Ryo Inoue
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Publication number: 20230129497Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi TAKADA, Yasushi YOSHIDA, Shiro YOSHIDOMI, Masanobu HARADA, Yasuhiro MATSUTANI, Daisuke FURUKAWA
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Patent number: 11566920Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: GrantFiled: July 17, 2020Date of Patent: January 31, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Takada, Yasushi Yoshida, Shiro Yoshidomi, Masanobu Harada, Yasuhiro Matsutani, Daisuke Furukawa
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Patent number: 11448530Abstract: An encoder includes a measurement target and circuitry. The measurement target includes an absolute pattern and is rotatable. The circuitry is configured to generate, via a processing scheme, a signal representing an absolute position of the measurement target based on the absolute pattern. The circuitry is configured to detect, based on the absolute pattern, whether the measurement target rotates or not. The circuitry is configured to change the processing scheme based on whether the measurement target rotates or not.Type: GrantFiled: February 6, 2020Date of Patent: September 20, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Masanao Takahashi, Daisuke Furukawa, Hiroshi Takada
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Publication number: 20220009289Abstract: The belt layer (50) of the pneumatic tire (10) includes one inclined belt (50 A) having an inclined cord inclined with respect to the tire width direction, and a circumferential belt (50 B) disposed outside the tire radial direction of the inclined belt (50 A) and having a circumferential cord (52) wound along the tire circumferential direction. The inclined cord and the circumferential cord are formed of a predetermined organic fiber. The tread thickness (T1) of the rubber forming the tread portion (20) along the tire radial direction at a tire equatorial line (CL) is 5 mm or less.Type: ApplicationFiled: December 13, 2019Publication date: January 13, 2022Applicant: BRIDGESTONE CORPORATIONInventors: Hiroshi TAKADA, Shingo HONDA
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Publication number: 20210156320Abstract: An internal-combustion engine includes a variable compression ratio mechanism for changing a mechanical compression ratio, and a variable valve timing mechanism for changing the valve timing of an intake valve. When acceleration is demanded, a target compression ratio is set to a lower compression ratio than the target value in a normal condition, and the valve timing is set to the advance angle side. Since the allowable combustion pressure decreases in a prescribed intermediate compression ratio region, if an actual compression ratio exists in the prescribed intermediate compression ratio region in the course of a compression ratio change accompanying acceleration, the variable compression ratio mechanism restricts the intake pressure by increasing a degree of opening of a wastegate valve or reducing a degree of opening of a throttle valve, for example.Type: ApplicationFiled: June 28, 2017Publication date: May 27, 2021Applicant: NISSAN MOTOR CO., LTD.Inventors: Kenji SUZUKI, Ryouichi OOTAKI, Yukiyo YAMADA, Masashi ONO, Hiroshi TAKADA
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Publication number: 20210072721Abstract: An encoder includes a disc and a sensor. The disc has a circular surface with a central axis and is rotatable around the central axis. The disc has a slit row provided on the circular surface. The slit row includes slits arranged in a circumferential direction of the circular surface around the central axis and in a radial direction of the circular surface. The sensor is provided opposite to the slit row on circular surface. The sensor has a first light receiver and a second light receiver. The first light receiver is configured to output a first light receiving signal as the slit row rotates along the circumferential direction when the disc rotates around the central axis. The second light receiver is configured to output a second light receiving signal as the slit row moves along the radial direction when the disc rotates around the central axis.Type: ApplicationFiled: September 6, 2020Publication date: March 11, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi TAKADA, Yasushi YOSHIDA, Yasuhiro MATSUTANI, Daisuke FURUKAWA, Ryo INOUE
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Publication number: 20210018890Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: ApplicationFiled: July 17, 2020Publication date: January 21, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi TAKADA, Yasushi YOSHIDA, Shiro YOSHIDOMI, Masanobu HARADA, Yasuhiro MATSUTANI, Daisuke FURUKAWA
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Publication number: 20200278222Abstract: An encoder includes a measurement target and circuitry. The measurement target includes an absolute pattern and is rotatable. The circuitry is configured to generate, via a processing scheme, a signal representing an absolute position of the measurement target based on the absolute pattern. The circuitry is configured to detect, based on the absolute pattern, whether the measurement target rotates or not. The circuitry is configured to change the processing scheme based on whether the measurement target rotates or not.Type: ApplicationFiled: February 6, 2020Publication date: September 3, 2020Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Masanao TAKAHASHI, Daisuke FURUKAWA, Hiroshi TAKADA
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Publication number: 20180147889Abstract: At a pneumatic tire (11), in a pneumatic tire in which a reinforcing layer (11) is structured from at least one reinforcing ply (53) in which are embedded plural reinforcing cords (54) that are formed from steel and are inclined with respect to a tire equator S, an inclination angle A of the reinforcing cords (54) with respect to the tire equator S is within a range of 40 to 90°, and a compressive rigidity F per 50 mm width of a reinforcing layer (52) in a direction parallel to the reinforcing cords (54) is within a range of 1000 to 2400 N.Type: ApplicationFiled: April 12, 2016Publication date: May 31, 2018Inventors: Hiroshi TAKADA, Hiroyuki YOKOKURA, Junko SAITO, Yuta HOSHINO
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Patent number: 9625283Abstract: An encoder includes a track having optical effecters arranged to have an absolute pattern in a measurement direction, a light source configured to emit diffusion light to the track, and a light receiving array configured to have light receiving elements arranged in the measurement direction and to receive light reflected or transmitted by the track. The light receiving elements fall within an area which is positioned corresponding to an area between the optical effecters and to which the light reflected by the track dose not reach.Type: GrantFiled: October 29, 2014Date of Patent: April 18, 2017Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
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Patent number: 9562794Abstract: An encoder includes a plurality of slit tracks, a point light source, a first light-receiving array, a second light-receiving array, and a third light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The first light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern. The second light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns. The third light-receiving array is configured to receive light reflected by the slit track comprising an absolute pattern.Type: GrantFiled: November 4, 2014Date of Patent: February 7, 2017Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
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Patent number: 9436166Abstract: An encoder includes a plurality of slit tracks, a point light source, a first to third light-receiving arrays. The plurality of slit tracks respectively comprises a plurality of reflection slits. The point light source emits diffusion light to the plurality of slit tracks. The first light-receiving array receives light reflected by the slit track comprising an incremental pattern. The second light-receiving array receives light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array, The third light-receiving array receives light reflected by the slit track comprising an absolute pattern, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array.Type: GrantFiled: November 4, 2014Date of Patent: September 6, 2016Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
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Patent number: D962262Type: GrantFiled: February 9, 2021Date of Patent: August 30, 2022Assignee: BRIDGESTONE CORPORATIONInventors: Hiroshi Takada, Hitomi Hanazawa
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Patent number: D962263Type: GrantFiled: February 9, 2021Date of Patent: August 30, 2022Assignee: BRIDGESTONE CORPORATIONInventors: Hiroshi Takada, Hitomi Hanazawa
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Patent number: D964387Type: GrantFiled: February 9, 2021Date of Patent: September 20, 2022Assignee: BRIDGESTONE CORPORATIONInventors: Hiroshi Takada, Hitomi Hanazawa