Patents by Inventor Masayuki Kuroda
Masayuki Kuroda 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: 20230386978Abstract: A semiconductor device includes: a substrate; a first nitride semiconductor layer on the substrate; a second nitride semiconductor layer on the first nitride semiconductor layer; finger-shaped source electrodes on the second nitride semiconductor layer; finger-shaped drain electrodes disposed so as to be spaced apart from the source electrodes; and finger-shaped gate electrodes respectively disposed between the source electrodes and the drain electrodes. The gate electrodes are electrically connected, via a first gate integrated wiring, a plurality of second gate integrated wirings and a third gate integrated wiring, to gate pads located on one or both ends of the third gate integrated wiring. A plurality of source pads and the plurality of second gate integrated wirings are formed alternately in a first direction perpendicular to the longitudinal direction of the gate electrodes.Type: ApplicationFiled: August 25, 2021Publication date: November 30, 2023Inventors: Masayuki KURODA, Takahiro SATO, Manabu YANAGIHARA, Hideyuki OKITA, Masahiro HIKITA
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Publication number: 20230361179Abstract: A nitride semiconductor device includes: a first active area surrounded by an isolation area; and the following electrodes above the first active area: a source electrode; a first gate electrode and a second gate electrode, one on either side of and spaced from the source electrode in a first direction in plan view; and at least one drain electrode located in a direction opposite the source electrode relative to the first gate electrode or the second gate electrode. The source electrode, the first gate electrode, the second gate electrode, and the at least one drain electrode each include a finger-shaped portion extending in a second direction perpendicular to the first direction in the plan view. A first dielectric film is disposed above the source electrode. The first gate electrode and the second gate electrode are electrically connected by a gate electrode joiner disposed above the first dielectric film.Type: ApplicationFiled: August 16, 2021Publication date: November 9, 2023Inventors: Manabu YANAGIHARA, Masayuki KURODA, Hiroto YAMAGIWA, Hideyuki OKITA, Masahiro HIKITA
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Patent number: 10414411Abstract: It is an object of the present invention to provide a notification control apparatus and a notification control method capable of previously notifying a passenger of a change of a motion of a vehicle travelling automatically. A notification control apparatus according to the present invention includes: a processor to execute a program; and a memory to store the program which, when executed by the processor, performs processes of, acquiring travel condition information which is information indicating a future travel condition of the vehicle, generating a sound image pattern based on the travel condition information, and generating a notification sound in accordance with the sound image pattern and, controlling the output of the notification sound, wherein the travel condition information includes information of a future course of the vehicle, and when the course is changed, the sound image pattern in accordance with the course being changed is generated.Type: GrantFiled: March 30, 2016Date of Patent: September 17, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masayuki Kuroda, Mitsuo Shimotani
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Patent number: 10312339Abstract: In a semiconductor device in the present disclosure, a first nitride semiconductor layer has a two-dimensional electron gas channel in a vicinity of an interface with a second nitride semiconductor layer. In plan view, an electrode portion is provided between a first electrode and a second electrode with a space between the first electrode and the second electrode, and a space between the second electrode and the electrode portion is smaller than the space between the first electrode and the electrode portion. An energy barrier is provided in a junction surface between the electrode portion and the second nitride semiconductor layer, the energy barrier indicating a rectifying action in a forward direction from the electrode portion to the second nitride semiconductor layer, and a bandgap of the second nitride semiconductor layer is wider than a bandgap of the first nitride semiconductor layer.Type: GrantFiled: October 9, 2017Date of Patent: June 4, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Saichirou Kaneko, Hiroto Yamagiwa, Ayanori Ikoshi, Masayuki Kuroda, Manabu Yanagihara, Kenichiro Tanaka, Tetsuyuki Fukushima
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Publication number: 20190023282Abstract: It is an object of the present invention to provide a notification control apparatus and a notification control method capable of previously notifying a passenger of a change of a motion of a vehicle travelling automatically. A notification control apparatus according to the present invention includes: a processor to execute a program; and a memory to store the program which, when executed by the processor, performs processes of, acquiring travel condition information which is information indicating a future travel condition of the vehicle, generating a sound image pattern based on the travel condition information, and generating a notification sound in accordance with the sound image pattern and, controlling the output of the notification sound, wherein the travel condition information includes information of a future course of the vehicle, and when the course is changed, the sound image pattern in accordance with the course being changed is generated.Type: ApplicationFiled: March 30, 2016Publication date: January 24, 2019Applicant: Mitsubishi Electric CorporationInventors: Masayuki KURODA, Mitsuo SHIMOTANI
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Publication number: 20180040706Abstract: In a semiconductor device in the present disclosure, a first nitride semiconductor layer has a two-dimensional electron gas channel in a vicinity of an interface with a second nitride semiconductor layer. In plan view, an electrode portion is provided between a first electrode and a second electrode with a space between the first electrode and the second electrode, and a space between the second electrode and the electrode portion is smaller than the space between the first electrode and the electrode portion. An energy barrier is provided in a junction surface between the electrode portion and the second nitride semiconductor layer, the energy barrier indicating a rectifying action in a forward direction from the electrode portion to the second nitride semiconductor layer, and a bandgap of the second nitride semiconductor layer is wider than a bandgap of the first nitride semiconductor layer.Type: ApplicationFiled: October 9, 2017Publication date: February 8, 2018Inventors: Saichirou KANEKO, Hiroto YAMAGIWA, Ayanori IKOSHI, Masayuki KURODA, Manabu YANAGIHARA, Kenichiro TANAKA, Tetsuyuki FUKUSHIMA
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Patent number: 9818835Abstract: In a semiconductor device in the present disclosure, a first nitride semiconductor layer has a two-dimensional electron gas channel in a vicinity of an interface with a second nitride semiconductor layer. In plan view, an electrode portion is provided between a first electrode and a second electrode with a space between the first electrode and the second electrode, and a space between the second electrode and the electrode portion is smaller than the space between the first electrode and the electrode portion. An energy barrier is provided in a junction surface between the electrode portion and the second nitride semiconductor layer, the energy barrier indicating a rectifying action in a forward direction from the electrode portion to the second nitride semiconductor layer, and a bandgap of the second nitride semiconductor layer is wider than a bandgap of the first nitride semiconductor layer.Type: GrantFiled: August 11, 2016Date of Patent: November 14, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Saichirou Kaneko, Hiroto Yamagiwa, Ayanori Ikoshi, Masayuki Kuroda, Manabu Yanagihara, Kenichiro Tanaka, Tetsuyuki Fukushima
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Patent number: 9680053Abstract: A nitride semiconductor device includes a transistor having a semiconductor stacked body formed on a substrate, and a pn light-emitting body formed on the semiconductor stacked body. The semiconductor stacked body includes a first nitride semiconductor layer, and a second nitride semiconductor layer formed on the first nitride semiconductor layer and having a bandgap wider than that of the first nitride semiconductor layer. The transistor includes: the semiconductor stacked body; a source electrode and a drain electrode formed away from each other on the semiconductor stacked body; and a gate electrode provided between the source electrode and the drain electrode and formed away from the source electrode and the drain electrode.Type: GrantFiled: November 6, 2015Date of Patent: June 13, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Kuroda, Manabu Yanagihara, Shinichi Oki
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Patent number: 9573418Abstract: A bearing device for a wheel has a hub wheel and a constant velocity universal joint with an outer joint member. Projecting portions extending in an axial direction are provided on one of an outer surface of a shaft section of the outer joint member and an inner surface of a hole portion of the hub wheel. The projecting portions are press-fitted into the other along the axial direction, and recessed portions are formed in the other through press-fitting of the projecting portions. Thus, a recess-projection fitting structure is formed, in which the projecting portions and the recessed portions are held in close contact with each other through an entire region of fitting contact regions therebetween.Type: GrantFiled: August 21, 2013Date of Patent: February 21, 2017Assignee: NTN CORPORATIONInventors: Masahiro Ozawa, Yuichi Asano, Masayuki Kuroda, Tohru Nakagawa, Kiyoshige Yamauchi, Mitsuru Umekida
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Publication number: 20160351676Abstract: In a semiconductor device in the present disclosure, a first nitride semiconductor layer has a two-dimensional electron gas channel in a vicinity of an interface with a second nitride semiconductor layer. In plan view, an electrode portion is provided between a first electrode and a second electrode with a space between the first electrode and the second electrode, and a space between the second electrode and the electrode portion is smaller than the space between the first electrode and the electrode portion. An energy barrier is provided in a junction surface between the electrode portion and the second nitride semiconductor layer, the energy barrier indicating a rectifying action in a forward direction from the electrode portion to the second nitride semiconductor layer, and a bandgap of the second nitride semiconductor layer is wider than a bandgap of the first nitride semiconductor layer.Type: ApplicationFiled: August 11, 2016Publication date: December 1, 2016Inventors: Saichirou KANEKO, Hiroto YAMAGIWA, Ayanori IKOSHI, Masayuki KURODA, Manabu YANAGIHARA, Kenichiro TANAKA, Tetsuyuki FUKUSHIMA
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Patent number: 9427753Abstract: In a rotary atomizer (10) including a rotating bell (92) secured to a rotating shaft (20a) of an air motor (20) held in an atomizer body, the rotating bell having a plurality of orifices (92a) for supplying paint to an object to be painted, the rotating bell being rotated to spray the paint toward the object to be painted, the rotary atomizer comprises a paint passage (102a) with a paint port (112c) at an end thereof fluidly communicating with the orifices of the rotating bell, and a water passage (108) arranged outside of the paint passage and having a water port at an end of the water passage leading to the orifices of the rotating bell. A needle (94) for opening and closing the paint port may be provided.Type: GrantFiled: January 17, 2014Date of Patent: August 30, 2016Assignee: RANSBURG INDUSTRIAL FINISHING K.K.Inventors: Masayuki Kuroda, Kenji Nagato
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Patent number: 9427754Abstract: In a rotary atomizer (10) including a rotating bell (92) secured to a rotating shaft (20a) of an air motor (20) held in an atomizer body, the rotating bell having a plurality of orifices (92a) for supplying paint to an object to be painted, the rotating bell being rotated to spray the paint toward the object to be painted, the rotary atomizer comprises a paint passage (102a) with a paint port (112c) at an end thereof fluidly communicating with the orifices of the rotating bell, and a water passage (108) arranged outside of the paint passage and having a water port at an end of the water passage leading to the orifices of the rotating bell. A needle (94) for opening and closing the paint port may be provided.Type: GrantFiled: January 17, 2014Date of Patent: August 30, 2016Assignee: RANSBURG INDUSTRIAL FINISHING K.K.Inventors: Masayuki Kuroda, Kenji Nagato
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Patent number: 9308777Abstract: A bearing device for a wheel is capable of suppressing radial play and allowing firm and easy connection between a hub and an outer ring of a constant velocity universal joint. Axially extending projections are provided on a shaft portion of a joint outer ring, and the shaft portion is press-fitted into a hole of a hub. Through this press-fitting, recesses held in close fit-engagement with the projections are formed by the projections in an inner diameter surface of the hub, forming a recess/projection fit-engagement structure in which the projections and the recesses are held in close contact with each other over an entire fit-engagement region thereof. A press-fitting margin (?d) of the projections with respect to the hub and a height (h) of the projections are set to the following range: 0.3<?d/2 h<0.86.Type: GrantFiled: June 27, 2014Date of Patent: April 12, 2016Assignee: NTN CORPORATIONInventors: Tohru Nakagawa, Yuichi Asano, Masahiro Ozawa, Masayuki Kuroda
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Publication number: 20160064600Abstract: A nitride semiconductor device includes a transistor having a semiconductor stacked body formed on a substrate, and a pn light-emitting body formed on the semiconductor stacked body. The semiconductor stacked body includes a first nitride semiconductor layer, and a second nitride semiconductor layer formed on the first nitride semiconductor layer and having a bandgap wider than that of the first nitride semiconductor layer. The transistor includes: the semiconductor stacked body; a source electrode and a drain electrode formed away from each other on the semiconductor stacked body; and a gate electrode provided between the source electrode and the drain electrode and formed away from the source electrode and the drain electrode.Type: ApplicationFiled: November 6, 2015Publication date: March 3, 2016Inventors: MASAYUKI KURODA, MANABU YANAGIHARA, SHINICHI OKI
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Publication number: 20160035853Abstract: In a semiconductor device in the present disclosure, a first nitride semiconductor layer has a two-dimensional electron gas channel in a vicinity of an interface with a second nitride semiconductor layer. In plan view, an electrode portion is provided between a first electrode and a second electrode with a space between the first electrode and the second electrode, and a space between the second electrode and the electrode portion is smaller than the space between the first electrode and the electrode portion. An energy barrier is provided in a junction surface between the electrode portion and the second nitride semiconductor layer, the energy barrier indicating a rectifying action in a forward direction from the electrode portion to the second nitride semiconductor layer, and a bandgap of the second nitride semiconductor layer is wider than a bandgap of the first nitride semiconductor layer.Type: ApplicationFiled: October 16, 2015Publication date: February 4, 2016Inventors: SAICHIROU KANEKO, HIROTO YAMAGIWA, AYANORI IKOSHI, MASAYUKI KURODA, MANABU YANAGIHARA, KENICHIRO TANAKA, TETSUYUKI FUKUSHIMA
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Patent number: 8944694Abstract: A bearing device for a driving wheel includes an outer race having an inner periphery in which double-row outer raceway surfaces are formed; a hub wheel and an inner race having outer peripheries in which double-row inner raceway surfaces opposed to the outer raceway surfaces are formed; and double-row rolling elements interposed between the outer raceway surfaces and the inner raceway surfaces. A shaft hole of the hub wheel is formed into a cylindrical shape, and a male spline is formed on an outer periphery of a stem section of the outer joint member so that the stem section of the outer joint member is press-fit into the shaft hole of the hub wheel. With this, recesses caused to fit on the male spline with interference are formed in the shaft hole of the hub wheel, whereby the hub wheel and the outer joint member are separably coupled to each other.Type: GrantFiled: March 7, 2008Date of Patent: February 3, 2015Assignee: NTN CorporationInventors: Yoshikazu Fukumura, Masayuki Kuroda, Hisaaki Kura, Shin Tomogami, Hiroshi Kawamura, Shigeaki Fukushima, Masahiro Ozawa, Yuichi Asano
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Publication number: 20140306511Abstract: A bearing device for a wheel is capable of suppressing radial play and allowing firm and easy connection between a hub and an outer ring of a constant velocity universal joint. Axially extending projections are provided on a shaft portion of a joint outer ring, and the shaft portion is press-fitted into a hole of a hub. Through this press-fitting, recesses held in close fit-engagement with the projections are formed by the projections in an inner diameter surface of the hub, forming a recess/projection fit-engagement structure in which the projections and the recesses are held in close contact with each other over an entire fit-engagement region thereof. A press-fitting margin (?d) of the projections with respect to the hub and a height (h) of the projections are set to the following range: 0.3<?d/2 h<0.86.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Applicant: NTN CORPORATIONInventors: Tohru NAKAGAWA, Yuichi ASANO, Masahiro OZAWA, Masayuki KURODA
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Patent number: 8801294Abstract: A bearing device for a wheel is capable of suppressing radial play and allowing firm and easy connection between a hub and an outer ring of a constant velocity universal joint. Axially extending projections are provided on a shaft portion of a joint outer ring, and the shaft portion is press-fitted into a hole of a hub. Through this press-fitting, recesses held in close fit-engagement with the projections are formed by the projections in an inner diameter surface of the hub, forming a recess/projection fit-engagement structure in which the projections and the recesses are held in close contact with each other over an entire fit-engagement region thereof. A press-fitting margin (?d) of the projections with respect to the hub and a height (h) of the projections are set to the following range: 0.3<?d/2h<0.86.Type: GrantFiled: September 17, 2008Date of Patent: August 12, 2014Assignee: NTN CorporationInventors: Tohru Nakagawa, Yuichi Asano, Masahiro Ozawa, Masayuki Kuroda
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Publication number: 20140131478Abstract: In a rotary atomizer (10) including a rotating bell (92) secured to a rotating shaft (20a) of an air motor (20) held in an atomizer body, the rotating bell having a plurality of orifices (92a) for supplying paint to an object to be painted, the rotating bell being rotated to spray the paint toward the object to be painted, the rotary atomizer comprises a paint passage (102a) with a paint port (112c) at an end thereof fluidly communicating with the orifices of the rotating bell, and a water passage (108) arranged outside of the paint passage and having a water port at an end of the water passage leading to the orifices of the rotating bell. A needle (94) for opening and closing the paint port may be provided.Type: ApplicationFiled: January 17, 2014Publication date: May 15, 2014Applicant: Ransburg Industrial Finishing K.K.Inventors: Masayuki Kuroda, Kenji Nagato
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Publication number: 20140134344Abstract: In a rotary atomizer (10) including a rotating bell (92) secured to a rotating shaft (20a) of an air motor (20) held in an atomizer body, the rotating bell having a plurality of orifices (92a) for supplying paint to an object to be painted, the rotating bell being rotated to spray the paint toward the object to be painted, the rotary atomizer comprises a paint passage (102a) with a paint port (112c) at an end thereof fluidly communicating with the orifices of the rotating bell, and a water passage (108) arranged outside of the paint passage and having a water port at an end of the water passage leading to the orifices of the rotating bell. A needle (94) for opening and closing the paint port may be provided.Type: ApplicationFiled: January 17, 2014Publication date: May 15, 2014Applicant: Ransburg Industrial Finishing K.K.Inventors: Masayuki Kuroda, Kenji Nagato