Patents by Inventor Akira Tezuka

Akira Tezuka 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: 11970091
    Abstract: To provide a vehicle seat in which the rotation device is disposed without compromising the passenger comfort in the cabin, a vehicle seat includes: a floor panel which has a sheet shape, constitutes a floor surface of a cabin, and has an elongated hole extending linearly; a slide device provided below the floor panel to be slidable along the elongated hole; a rotation device provided on the slide device to be rotatable about a rotation axis below the floor panel, the rotation axis extending vertically and overlapping with the elongated hole; a support leg which is columnar in shape, is provided on the rotation device along the rotation axis, and extends to above the floor panel by passing through the elongated hole; and a seat main body which is joined to an upper end of the support leg and on which an occupant can be seated.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: April 30, 2024
    Assignee: TS TECH CO., LTD.
    Inventors: Hiroyuki Numajiri, Nobuyuki Tezuka, Akihito Kobayashi, Tadashi So, Akira Miyoshi, Tomoyuki Kurimoto
  • Publication number: 20200278477
    Abstract: A method of producing a hard-coated resin body includes a first step of applying a hard coating agent to a base body to obtain a function-adding base body, a second step of setting the function-adding base body obtained in the first step to face a resin body, of heating the function-adding base body to evaporate the hard coating agent applied to the function-adding base body, and of depositing the hard coating agent on the resin body, and a third step of curing the hard coating agent on the resin body on which the hard coating agent is deposited in the second step.
    Type: Application
    Filed: February 18, 2020
    Publication date: September 3, 2020
    Applicant: NIDEK CO., LTD.
    Inventors: Akira TEZUKA, Minoru INUZUKA, Koji ABE
  • Patent number: 9951246
    Abstract: A composition for a hard coat according to an embodiment of the present disclosure includes: a trifunctional or more methacrylate monomer and/or acrylate monomer; and a mixed solvent that contains a first solvent including at least one of a glycol-based solvent and a cellosolve-based solvent, and a second solvent including lower alcohol.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: April 24, 2018
    Assignee: NIDEK CO., LTD.
    Inventors: Koji Abe, Akira Tezuka, Minoru Inuzuka, Hironori Ebi, Motoshi Tanaka
  • Publication number: 20160075908
    Abstract: A composition for a hard coat according to an embodiment of the present disclosure includes: a trifunctional or more methacrylate monomer and/or acrylate monomer; and a mixed solvent that contains a first solvent including at least one of a glycol-based solvent and a cellosolve-based solvent, and a second solvent including lower alcohol.
    Type: Application
    Filed: September 10, 2015
    Publication date: March 17, 2016
    Inventors: Koji ABE, Akira TEZUKA, Minoru INUZUKA, Hironori EBI, Motoshi TANAKA
  • Publication number: 20050048267
    Abstract: The present invention provides an optical element, an optical element wafer and a method of manufacturing the same. The optical element comprises a optical film adhered on an substrate of the optical element. The method for manufacturing the optical element wafer comprising the steps of dividing a base material of a optical film into a plurality of optical films, separating the optical film base material by removing sections where no optical film is to be formed, adhering the divided optical films on the substrate base material, and a plurality of optical elements are obtained by dividing the substrate base material with the optical film adhered on one surface of the individual substrate.
    Type: Application
    Filed: May 22, 2003
    Publication date: March 3, 2005
    Inventors: Akira Tezuka, Fuminori Aikawa, Masayuki Tsuchida, Fumiki Komagata
  • Patent number: 6820503
    Abstract: An object of the present invention is to achieve more high-speed rotation of a rotor to which a test object is stored, extending the duration of high-speed rotation, and temperature control of a rotor at the time of high-speed rotation. A high-speed rotation testing apparatus of the present invention comprises: a rotor having a hollow for a test object, to which a predetermined test object is stored; a spindle connected to the rotor; a torque applying device for applying a predetermined torque to the spindle, and a casing for sealing the rotor. The casing comprises a decompressing device and a holder for holding the spindle. The holder has a bushing for supporting the spindle and a bushing supporting member for supporting the bushing by inserting thereto. By forming the inner diameter of at least one of the bushing supporting member larger than the outer diameter of the bushing, the bushing supporting member supports the bushing to be rotatable.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: November 23, 2004
    Assignees: Maruwa Electronic Inc.
    Inventors: Masanori Sueyoshi, Akira Tezuka, Koji Shibasaki, Xinsheng Huang, Toyotaka Osakabe, Masao Ono, Tsutomu Mashimo
  • Publication number: 20030062304
    Abstract: An object of the present invention is to achieve more high-speed rotation of a rotor to which a test object is stored, extending the duration of high-speed rotation, and temperature control of a rotor at the time of high-speed rotation. A high-speed rotation testing apparatus of the present invention comprises: a rotor having a hollow for a test object, to which a predetermined test object is stored; a spindle connected to the rotor; a torque applying device for applying a predetermined torque to the spindle, and a casing for sealing the rotor. The casing comprises a decompressing device and a holder for holding the spindle. The holder has a bushing for supporting the spindle and a bushing supporting member for supporting the bushing by inserting thereto. By forming the inner diameter of at least one of the bushing supporting member larger than the outer diameter of the bushing, the bushing supporting member supports the bushing to be rotatable.
    Type: Application
    Filed: September 10, 2002
    Publication date: April 3, 2003
    Applicant: Tsutomu MASHIMO
    Inventors: Masanori Sueyoshi, Akira Tezuka, Koji Shibasaki, Xinsheng Huang, Toyotaka Osakabe, Masao Ono, Tsutomu Mashimo
  • Patent number: 5707730
    Abstract: An adhesive for bonding a reinforcing sheet to a lead-formed surface of a tape carrier package used for forming a semiconductor device, the adhesive being a resin composition which constitutes an interlayer between the lead-formed surface and the reinforcing sheet, comprises a polyamide resin having an amine value of 3.0 to 50 and an epoxy resin, is free from peeling and foaming, undergoes sufficient softening and curing at a temperature lower than about 150.degree. C., has high insulation reliability after cured, and has heat resistance against a temperature up to 260.degree. C.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: January 13, 1998
    Assignee: Tomoegawa Paper Co. Ltd.
    Inventors: Tadahiro Oishi, Akira Tezuka
  • Patent number: 5614316
    Abstract: This invention provide an adhesive tape by which adhesion to a metal spreader is not required and a cutting process is not necessary. The adhesive tape comprises an adhesive layer provided on at least one surface of metal sheet, said adhesive layer being semi-cured into a B-stage and comprised of: (a) a piperazinylethylaminocarbonyl-containing butadiene-acrylonitrile copolymer of the formula (I): ##STR1## wherein, k, m, and n are molar ratios and taking n as l, k is a number of 3-175, and m is a number of 0.3 to 93; and (b) a compound having at least two maleimide groups, the ratio of component (b) based on 100 parts by weight of component (a) being in a range of 10 to 900 parts by weight, and said adhesive layer being composed of at least two semi-cured layers having each a different status of semi-cure.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: March 25, 1997
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Takeshi Hashimoto, Akira Tezuka, Takeshi Nishigaya, Fumiyoshi Yamanashi
  • Patent number: 5065015
    Abstract: Disclosed is a solar radiation sensor apparatus. A light-blocking plate is provided above the light-receiving surface of a photoelectric element, and has an area smaller than the area of the light-receiving surface. The incident angle sensitivity characteristic of the sensor apparatus can be improved without involving any increase in the external dimensions of the sensor apparatus.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: November 12, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Hyosei Horiguchi, Akira Tezuka, Tsuneo Kagohata, Toshikazu Ito
  • Patent number: 4925378
    Abstract: A rotary vane compressor comprising a cylinder, a rotor rotatably mounted within the cylinder and cooperating with an inner peripheral surface of the cylinder to define a compression chamber therebetween, two side plates for closing both ends of the cylinder, at least one vane slidably mounted to the rotor for movement radially toward and away from the rotor through an outer peripheral surface thereof and dividing the compression chamber into a plurality of spaces, and a chip seal provided on a forward end of the vane for slidably engaging with the inner peripheral surface of the cylinder. The sealing efficiency of the chip seal is increased by introducing the pressure in a central portion of the rotor into the forward end of the vane.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: May 15, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Ushiku, Akira Tezuka
  • Patent number: 4852639
    Abstract: In an air conditioning system for a vehicle, a duct case has defined therewithin a cold-air passageway and a hot-air passageway. A heater is arranged within the duct case for heating air flowing through the hot-air passageway. An air-mixing damper is arranged for angular movement within the duct case at a location upstream of the heater, for adjusting flow rate of air passing through the cold-air passageway and flow rate of air passing through the hot-air passageway. A plurality of cold-air blowing openings open to the hot-air passageway at a location downstream of the heater. A cold-air bypass passage is provided for leading cold air before passing through the heater to the cold-air blowing openings. The cold air led by the cold-air bypass passage is blown from the cold-air blowing openings into flow of the hot air having passed through the heater such that the cold-air flow is intersected with the hot-air flow, thereby forcibly mixing the hot air and the cold air with each other.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: August 1, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Hyosei Horiguchi, Akira Tezuka, Shuuichi Seki
  • Patent number: 4815943
    Abstract: A variable displacement compressor comprises a housing forming a crank chamber, a shaft, expansible chambers including pistons, a swash plate connected to the shaft so as to be smoothly changeable in inclination against the shaft and driven to rotate, a wobble plate rotatable on the swash plate, a rotation preventing mechanism including a shoe member slidable in an axial direction, and a pressure control valve which is provided in a refrigerant passage from a suction port of the compressor to the expansible chamber to control the pressure of refrigerant to be sucked responsive to the suction pressure and both to the suction pressure and to the discharge pressure when the discharge pressure is high. The refrigerant passage has a sharply bent portion for separating lubrication oil from a refrigerant flowing therein and communicates with the crank chamber to discharge blow-by gas therefrom.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: March 28, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Kawashima, Kenji Emi, Akira Tezuka, Kosaku Sayo, Toshikazu Ito, Toshio Sudo, Yukio Takahashi, Isao Hayase, Atsushi Suginuma, Kiyosi Yamamoto, Hideo Usui, Kunihiko Takao, Masao Mizukami, Masaru Ito, Masahiro Moritaka
  • Patent number: 4760772
    Abstract: In a vehicle air-conditioning control apparatus for controlling the temperature and amount of air to be supplied to the interior of a vehicle room to control the air temperature in the room to a command value, a sunlit illumination sensor is provided including a plurality of photodetectors which have sensitivity characteristics varying with an incident angle of light and which are so arranged as to be oriented in different directions, an incident angle calculator is provided which calculates, on the basis of output signals of the photodetectors, an angle the sunlight ray makes to either of the righthand side and lefthand side of the vehicle and an angle of elevation of the sun relative to the horizontal plane of the vehicle, and distribution of air supply amounts on a horizontal plane within the room is controlled in accordance with calculated values delivered out of the incident angle calculator.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: August 2, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Hiyosei Horiguchi, Akira Tezuka
  • Patent number: 4757944
    Abstract: A control apparatus of an air conditioner for automobiles comprises: means for calculating a room temperature difference signal; means for calculating a reference blowout temperature; means for correcting the reference blowout temperature, thereby calculating a target blowout temperature; and means for controlling the heat exchanger such that the difference between the target blowout temperature and the actual blowout temperature becomes zero. This control apparatus can always maintain and manage the blowout air temperature at which the passenger can feel most comfortable for various ambient temperature conditions.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: July 19, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Tsuneo Kagohata, Reijiro Takahashi, Akira Tezuka, Toshikazu Ito
  • Patent number: 4649709
    Abstract: An air conditioning method for controlling a room temperature by an air conditioner which controls a temperature control element in accordance with a required cooling power in the room. A temperature of chilled air blown out of a chilled air blow-off port of the air conditioner is directly or indirectly monitored, and if the chilled air temperature is lower than a predetermined temperature, the chilled air blown out of the blow-off port is prevented from becoming colder than a predetermined temperature even when the chilled air temperature would become lower than the predetermined temperature if the temperature control in accordance with the required cooling force in the room is applied.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: March 17, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Tsuneo Kagohata, Kenichi Chonan, Atsushi Suginuma, Akira Tezuka, Hideo Usui
  • Patent number: 4389855
    Abstract: Disclosed is a dual air-conditioner for cars comprising an electromagnetic valve disposed in a refrigerant passage immediately downstream an outlet of an auxiliary evaporator for controlling the cross-sectional area of the passage, and an internal pressure balancing type expansion valve disposed in the refrigerant passage immediately upstream an inlet of the auxiliary evaporator. The passage cross-sectional area is controlled by the electromagnetic valve to control the pressure prevailing in the refrigerant passage between the expansion valve and electromagnetic valve so that the opening of the expansion valve is varied to regulate the flow rate of the refrigerant flowing into the auxiliary evaporator to thereby control the temperature of blow-off cooled air from the auxiliary evaporator.
    Type: Grant
    Filed: August 5, 1981
    Date of Patent: June 28, 1983
    Assignee: Hitachi, Ltd.
    Inventors: Toshimichi Ueda, Akira Tezuka, Seiichi Wakairo, Moriyuki Sakuma, Masashi Mochizuki