Patents by Inventor Tetsuya Tamura
Tetsuya Tamura 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: 20240118348Abstract: A method of estimating life of a nickel-metal hydride battery that accommodates a positive electrode plate and a negative electrode plate facing the positive electrode plate with a separator therebetween and containing a hydrogen absorbing alloy together with an electrolyte is disclosed. A charge phase of charging the nickel-metal hydride battery and a discharge phase of discharging the nickel-metal hydride battery after the charge phase constitutes one cycle for charge/discharge of the nickel-metal hydride battery. The method includes: determining a rate of change after one charge/discharge cycle of a surface area of the negative electrode plate which is a boundary face in contact with the electrolyte, and determining an amount of corrosion of the hydrogen absorbing alloy based on the rate of change accumulated for n charge/discharge cycles to estimate the life of the nickel-metal hydride battery based on the amount of corrosion.Type: ApplicationFiled: September 27, 2023Publication date: April 11, 2024Inventors: Tetsuya Yamane, Tetsu Yamanaka, Masanori Tamura, Hideyuki Asanuma
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Patent number: 11923749Abstract: A casing (10) is divided into a cylindrical first case portion (51) integrally having a partition part (54), a second case portion (52) connected to one end of the first case portion in an axial direction and configured to cover a second space (S2), and a third case portion (53) connected to the other end of the first case portion in the axial direction and configured to cover a first space (S1). A signal cable passed through a through hole (54c) of the partition part extends from a sensor (72, 73) to an external connector (81) provided in the second case portion or the third case portion, and is anchored to the first case portion (51) in the vicinity of a through hole (54c) of the partition part.Type: GrantFiled: August 9, 2019Date of Patent: March 5, 2024Assignee: NTN CORPORATIONInventors: Aiko Myouki, Tetsuya Yamamoto, Shinya Taikou, Shiro Tamura, Naoya Takeuchi
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Publication number: 20240072200Abstract: A method of manufacturing a light-emitting device includes: preparing a light source, which includes: (a) preparing a structure including: a support substrate having a first upper face and including, on the first upper face, a plurality of first terminal parts disposed in the light-emitting part arrangement region, and one or more first wire-connection parts, and a plurality of light-emitting parts disposed in the light-emitting part arrangement region and electrically connected to the first terminal parts, each of the plurality of light-emitting parts having an emission face, (b) disposing a resin member on the first upper face between the light-emitting part arrangement region and the one or more first wire-connection parts in a top view, and (c) disposing a light-shielding member in contact with the resin member while the first wire-connection parts and the emission faces of the light-emitting parts are exposed from the light-shielding member in the top view.Type: ApplicationFiled: August 18, 2023Publication date: February 29, 2024Applicant: NICHIA CORPORATIONInventors: Tetsuya ISHIKAWA, Gensui TAMURA
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Publication number: 20230266648Abstract: A projector according to an aspect of the present disclosure includes a light source apparatus, an image generator, an optical path changer, and a projection optical apparatus. The image generator includes a light modulator that modulates the light emitted from the light source apparatus in accordance with image information to generate the image light, and a first holder that holds the light modulator. The optical path changer includes an optical part that the image light outputted from the image generator enters, an optical support section that pivotably supports the optical part, and a second holder that holds the optical support section. The projection optical apparatus includes a projection system that the light emitted from the optical path changer enters, and a third holder that holds the projection system. The first and second holders are fixed to the third holder.Type: ApplicationFiled: February 22, 2023Publication date: August 24, 2023Inventors: Masatoshi ITO, Tetsuya TAMURA
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Patent number: 11591513Abstract: An organic compound is represented by general formula (1) below: where X1 and X2 are each independently selected from the group consisting of an alkyl group, an aryl group, and an aralkyl group; R11 to R16 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a heterocyclic group, and a halogen atom; R21 and R22 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, and an aralkyl group; and A1? and A2? each independently represent a monovalent anion.Type: GrantFiled: September 7, 2018Date of Patent: February 28, 2023Assignee: Canon Kabushiki KaishaInventors: Satoshi Igawa, Jun Yamamoto, Kenji Yamada, Tetsuya Tamura
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Patent number: 11422444Abstract: A projector according to the disclosure includes a projection system projecting image light onto a target projection surface, and a shutter unit that is arranged at a light incident side of the projection system and that can block an optical path. The shutter unit has a drive motor, a transmission member transmitting a rotational drive force of the drive motor, and a shutter member arranged on the optical path and moving, linked to a movement of the transmission member. The shutter member is provided facing a facing area facing the projection system. At least a part of the transmission member is provided facing the facing area. The drive motor is provided outside the facing area.Type: GrantFiled: December 21, 2020Date of Patent: August 23, 2022Assignee: Seiko Epson CorporationInventors: Tetsuya Tamura, Hiroyuki Furui
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Publication number: 20210191240Abstract: A projector according to the disclosure includes a projection system projecting image light onto a target projection surface, and a shutter unit that is arranged at a light incident side of the projection system and that can block an optical path. The shutter unit has a drive motor, a transmission member transmitting a rotational drive force of the drive motor, and a shutter member arranged on the optical path and moving, linked to a movement of the transmission member. The shutter member is provided facing a facing area facing the projection system. At least a part of the transmission member is provided facing the facing area. The drive motor is provided outside the facing area.Type: ApplicationFiled: December 21, 2020Publication date: June 24, 2021Inventors: Tetsuya TAMURA, Hiroyuki FURUI
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Patent number: 10670949Abstract: A projector includes a light source apparatus, an image formation apparatus that includes a light modulator and forms an image, the light modulator modulating light outputted from the light source apparatus, a projection optical apparatus that projects the image formed by the image formation apparatus, and an attitude adjustment apparatus that causes the light modulator to pivot around a pivotal axis perpendicular to the optical axis of the projection optical apparatus to adjust the attitude of the light modulator.Type: GrantFiled: September 28, 2018Date of Patent: June 2, 2020Assignee: SEIKO EPSON CORPORATIONInventors: Tetsuya Tamura, Takuya Hatano
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Patent number: 10591811Abstract: A projector includes light source, plurality of light modulation devices, light combining device integrated with the plurality of light modulation devices, projection optical device, posture adjustment device that adjusts posture of the light combining device, and control device that controls operation of the posture adjustment device, the posture adjustment device includes lead screw that changes posture of the light combining device, driver that rotates lead screw, shaft member to which rotation of lead screw is transmitted, potentiometer that detects amount of rotation of the shaft member, and photosensor that may be shielded by light shielding portion provided in the shaft member, and the control device includes abnormality determination unit that determines whether or not abnormality has occurred based on detection result by the potentiometer, and return operation unit that, if occurrence of abnormality is determined, returns the light combining device to original position based on detection result by thType: GrantFiled: September 28, 2018Date of Patent: March 17, 2020Assignee: SEIKO EPSON CORPORATIONInventors: Tetsuya Tamura, Kazunori Maeta
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Patent number: 10364223Abstract: Provided is an organic compound, which is represented by the general formula (1): in the general formula (1), R1 and R2 are each independently selected from the group consisting of an alkyl group having 1 or more and 20 or less carbon atoms, an aryl group, an aralkyl group, and a heteroaryl group, R3 and R4 are each independently selected from an alkyl group having 1 or more and 10 or less carbon atoms, and an alkoxy group having 1 or more and 10 or less carbon atoms, and A1? and A2? each independently represent a monovalent anion.Type: GrantFiled: February 13, 2018Date of Patent: July 30, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Tetsuya Tamura, Satoshi Igawa
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Patent number: 10361452Abstract: A garnet-type oxide sintered body according to the present invention includes crystal grains composed of a garnet-type oxide containing Li, La and Zr and a grain boundary composition containing boron and silicon and filling gaps between the crystal grains. The oxide sintered body has the characteristics of high density and high ion conductivity. A production method of the sintered body includes a step of providing a precursor material by mixing a garnet-type oxide powder containing Li, La and Zr with a sintering aid; a step of forming the precursor material into a formed body; and a sintering step of sintering the formed body. The sintering aid contains oxygen, boron, silicon and lithium. The oxygen and boron, or the oxygen and silicon, contained in the sintered aid form a compound.Type: GrantFiled: July 13, 2016Date of Patent: July 23, 2019Assignee: Central Glass Company, LimitedInventors: Tsutomu Nishizaki, Ryota Esaki, Tetsuya Tamura
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Patent number: 10328730Abstract: A recording apparatus includes a housing which configures at least a portion of an outside of an apparatus main body which is provided with a recorder which performs recording on a medium, a lid body which opens and closes at least a portion of a top portion of the apparatus main body and is capable of tilting, and a tilting shaft of the lid body, in which the tilting shaft is capable of being displaced in a direction intersecting an axial line direction of the tilting shaft, and in which the lid body is capable of tilting from a closed state in which a gap between the housing and an end portion of an opposite side from a free end side is filled to an opened state by the displacement of the tilting shaft.Type: GrantFiled: June 16, 2017Date of Patent: June 25, 2019Assignee: Seiko Epson CorporationInventors: Kenichi Shirota, Yoshiyuki Okazawa, Tetsuya Tamura, Kensuke Tamai, Shintaro Miyamoto
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Patent number: 10310350Abstract: An organic compound represented by General Formula (1), in which, in General Formula (1), R1 represents an alkyl group or an alkoxy group, X1 and X2 are each independently selected from an alkyl group which may have a substituent, an aryl group which may have a substituent, or an aralkyl group which may have a substituent, and A1? and A2? each independently represent a monovalent anion.Type: GrantFiled: May 10, 2017Date of Patent: June 4, 2019Assignee: Canon Kabushiki KaishaInventors: Satoshi Igawa, Jun Yamamoto, Kenji Yamada, Tetsuya Tamura
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Publication number: 20190101812Abstract: A projector includes light source, plurality of light modulation devices, light combining device integrated with the plurality of light modulation devices, projection optical device, posture adjustment device that adjusts posture of the light combining device, and control device that controls operation of the posture adjustment device, the posture adjustment device includes lead screw that changes posture of the light combining device, driver that rotates lead screw, shaft member to which rotation of lead screw is transmitted, potentiometer that detects amount of rotation of the shaft member, and photosensor that may be shielded by light shielding portion provided in the shaft member, and the control device includes abnormality determination unit that determines whether or not abnormality has occurred based on detection result by the potentiometer, and return operation unit that, if occurrence of abnormality is determined, returns the light combining device to original position based on detection result by thType: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Applicant: SEIKO EPSON CORPORATIONInventors: Tetsuya TAMURA, Kazunori MAETA
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Publication number: 20190101811Abstract: A projector includes a light source apparatus, an image formation apparatus that includes a light modulator and forms an image, the light modulator modulating light outputted from the light source apparatus, a projection optical apparatus that projects the image formed by the image formation apparatus, and an attitude adjustment apparatus that causes the light modulator to pivot around a pivotal axis perpendicular to the optical axis of the projection optical apparatus to adjust the attitude of the light modulator.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Applicant: SEIKO EPSON CORPORATIONInventors: Tetsuya TAMURA, Takuya HATANO
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Publication number: 20190002758Abstract: An organic compound is represented by general formula (1) below: where X1 and X2 are each independently selected from the group consisting of an alkyl group, an aryl group, and an aralkyl group; R11 to R16 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a heterocyclic group, and a halogen atom; R21 and R22 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, and an aralkyl group; and A1? and A2? each independently represent a monovalent anion.Type: ApplicationFiled: September 7, 2018Publication date: January 3, 2019Inventors: Satoshi Igawa, Jun Yamamoto, Kenji Yamada, Tetsuya Tamura
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Publication number: 20180354614Abstract: A vertical take-off and landing aircraft according to an embodiment of the present disclosure includes: a pair of ducted fans; a fuselage that is disposed at a lower position than the ducted fans; a frame body that connects the fuselage and the ducted fans; and a stabilizer fin that is disposed at a position at which the stabilizer fin does not obstruct airflows from the ducted fans, which is a position that is lower than an airframe center of gravity and which is rearward of the fuselage.Type: ApplicationFiled: August 22, 2018Publication date: December 13, 2018Applicant: IHI CorporationInventors: Masayoshi TUNEKAWA, Tetsuya TAMURA, Masao HASEGAWA
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Patent number: 10118413Abstract: A recording apparatus includes a medium container to store a medium, feeding rollers to be switched between a feeding state in which the feeding rollers are in contact with the medium and a separated state in which the feeding rollers are separated from the medium, a reversing path for reversing the medium that has been fed from the medium container, a recorder to perform recording on the medium that has been reversed by the reversing path, a back-feed path for introducing the medium that has been fed in the reverse direction from the recording region in which recording has been performed by the recorder toward the reversing path, and a nip roller configured to nip the medium within the back-feed path. At least a portion of the feeding rollers that are in the separated state overlaps the nip roller in the direction of the height of the recording apparatus.Type: GrantFiled: June 13, 2017Date of Patent: November 6, 2018Assignee: Seiko Epson CorporationInventors: Tatsuya Shirane, Tetsuya Tamura, Toshio Miyake
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Publication number: 20180297697Abstract: A vertical takeoff and landing aircraft includes a pair of ducted fans adapted to generate lift and thrust, a frame adapted to couple together the ducted fans, a power source adapted to supply power to the ducted fans, and legs adapted to support an airframe at the time of landing, in which one of the ducted fans is inclined tangentially to a rotational direction on the side farther from the other ducted fan.Type: ApplicationFiled: June 15, 2018Publication date: October 18, 2018Applicant: IHI CorporationInventors: Masayoshi TUNEKAWA, Masao HASEGAWA, Tetsuya TAMURA
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Publication number: 20180237393Abstract: Provided is an organic compound, which is represented by the general formula (1): in the general formula (1), R1 and R2 are each independently selected from the group consisting of an alkyl group having 1 or more and 20 or less carbon atoms, an aryl group, an aralkyl group, and a heteroaryl group, R3 and R4 are each independently selected from an alkyl group having 1 or more and 10 or less carbon atoms, and an alkoxy group having 1 or more and 10 or less carbon atoms, and A1? and A2? each independently represent a monovalent anion.Type: ApplicationFiled: February 13, 2018Publication date: August 23, 2018Inventors: Tetsuya Tamura, Satoshi Igawa