Patents by Inventor Kei Watanabe

Kei Watanabe 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).

  • Publication number: 20210213997
    Abstract: A steering system configured to steer a vehicle includes a rotary shaft to which an operation member is coupled; a moving unit configured to move the operation member between a normal position that is a position where the operation member is operated by a driver, and a storage area located ahead of the normal position; an external force detection unit configured to detect an external force externally applied to the operation member while the operation member is moving; a determination unit configured to determine whether a direction of the external force detected by the external force detection unit is the same as a moving direction of the operation member; and a control unit configured to control operation of the steering system based on a determination result from the determination unit.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 15, 2021
    Applicant: JTEKT CORPORATION
    Inventors: Takeshi WATANABE, Yasuyuki NOZAWA, Kei KITAHARA
  • Publication number: 20210213647
    Abstract: A powder particle mixture which contains a polybutylene terephthalate resin and a polycarbonate resin, and which is characterized in that: the average particle diameter thereof is more than 1 ?m but 100 ?m or less; the uniformity thereof is 4 or less; the melting point thereof is more than 220° C.; and the difference between the melting point thereof and the crystallization temperature thereof is 60° C. or more. A powder particle composition which is characterized by containing inorganic microparticles that have an average particle diameter of 20-500 nm at a ratio of 0.1-5 parts by weight relative to 100 parts by weight of the powder particle mixture. The present invention efficiently provides a polybutylene terephthalate resin powder which is suitable as a material powder for the production of a three-dimensional shaped product by means of Selective Laser Sintering 3D printer.
    Type: Application
    Filed: October 8, 2019
    Publication date: July 15, 2021
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kei WATANABE, Kazusada TAKEDA, Junji ISHIBASHI, Hisashi MIYAMA, Mikiya NISHIDA
  • Publication number: 20210151372
    Abstract: In one embodiment, the semiconductor device includes a first insulator including Si (silicon) and O (oxygen). The device further includes a first interconnect provided in the first insulator and including a metal element. The device further includes a second insulator provided on the first insulator and the first interconnect and including Si, C (carbon) and N (nitrogen), content of Si—H groups (H represents hydrogen) in the second insulator being 6.0% or less, content of Si—CH3 groups in the second insulator being 0.5% or less. The device further includes a second interconnect provided on the first interconnect in the second insulator and including the metal element.
    Type: Application
    Filed: November 18, 2020
    Publication date: May 20, 2021
    Applicant: Kioxia Corporation
    Inventors: Shinya OKUDA, Kei WATANABE, Kosuke HORIBE
  • Patent number: 11008426
    Abstract: A polyarylene sulfide resin particulate has a mean particle diameter from more than 1 ?m to 100 the uniformity is 4 or less, the melt viscosity measured at temperature of 300° C. and shear rate of 1216 sec?1 is 150 to 500 Pa·s, and the recrystallization temperature, defined as temperature of the heat generation peak at the time of crystallization when cooled from 340° C. to 50° C. at 20° C./min using a differential scanning calorimeter, is 150 to 210° C. The polyarylene sulfide resin particulate is suitable as a material powder for producing a three-dimensional molding by a powder sintering three-dimensional printer can be provided efficiently.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 18, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Kei Watanabe, Kazusada Takeda, Hisashi Miyama, Mikiya Nishida
  • Patent number: 11002995
    Abstract: A fringe projector apparatus includes: a phase modulator having a first waveguide, a second waveguide, and a plurality of heaters including a first heater and a second heater, wherein the first and second waveguides and the plurality of heaters are provided on a single substrate, and wherein the first heater heats the first waveguide and the second heater heats a position away from the first waveguide; a light source that generates a light beam to be input to the first waveguide and the second waveguide; and a controller that controls a phase difference between the first waveguide and the second waveguide by changing an electric power consumption of the first heater under a condition that a total electric power consumption of the plurality of heaters is constant.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: May 11, 2021
    Assignees: OLYMPUS CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daichi Watanabe, Satomi Katayose, Kei Watanabe, Yu Kurata, Ryoichi Kasahara
  • Patent number: 11001046
    Abstract: A method of producing polybutylene terephthalate resin shaped moldings includes supplying a 3D printer with a polybutylene terephthalate resin powder mixture that contains 100 parts by weight of a polybutylene terephthalate resin powder material having a mean diameter of more than 1 ?m and 100 ?m or less, a uniformity coefficient of 4 or less, and a terminal carboxyl group quantity of 35 eq/t or more and 50 eq/t or less, and 0.1 to 5 parts by weight of inorganic particles having a mean diameter of 20 to 500 nm.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: May 11, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Kei Watanabe, Kazusada Takeda, Yosuke Nishimura, Hiroshi Takezaki, Hisashi Miyama, Mikiya Nishida
  • Patent number: 11001463
    Abstract: A medium supply apparatus includes a box member and a lid. A medium is stored inside the box member. The box member is inserted into and extracted from a body of an image forming apparatus, and has a length in an extraction/insertion direction that is longer than a length of the body in the extraction/insertion direction. The lid is provided on a back side of the body in the extraction/insertion direction of the box member to cover at least an upper part of a portion of the box member that projects from the body. The lid includes a first member, a second member, and a first lug. The first member is movable in the extraction/insertion direction with respect to the body. The second member is connected to the first member so as to be relatively movable in the extraction/insertion direction with respect to the first member. The second member is moved by being pushed by the box member which is inserted into the body. The first lug is provided on the second member.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: May 11, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shinji Yaginuma, Yasunobu Goto, Kei Watanabe
  • Publication number: 20210129307
    Abstract: A reciprocating tool includes a motor, a driving mechanism, a body housing, a movable part, and a vibration control mechanism. The driving mechanism includes a reciprocating member configured to reciprocate in a first direction. The movable part is connected to the body housing via a first elastic member and a second elastic member to be relatively movable in the first direction. The vibration control mechanism includes at least one weight configured to move in a direction opposite to the reciprocating member. The center of gravity of the at least one weight is offset from the driving axis in a second direction. In the second direction, the first elastic member is closer to the center of gravity than the second elastic member. A load of the first elastic member when the movable part is placed in a closer position is smaller than a load of the second elastic member.
    Type: Application
    Filed: October 20, 2020
    Publication date: May 6, 2021
    Applicant: MAKITA CORPORATION
    Inventors: Hideki TSUJI, Hajime TAKEUCHI, Kei WATANABE, Kazuo MURAMATSU, Masahiro MAEGAWA
  • Patent number: 10994784
    Abstract: A vehicle body front structure includes a side frame and a tubular member. The side member extends in a longitudinal direction of a vehicle body. The side frame member is configured to have a closed hollow section in a vertical direction orthogonal to the longitudinal direction. The tubular member extends in the longitudinal direction within the side frame. The tubular member is configured to have a closed hollow section in the vertical direction. The tubular member is spaced apart from the side frame.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: May 4, 2021
    Assignee: HONDA MOTOR CO. LTD.
    Inventors: Kei Watanabe, Keita Ishihara
  • Patent number: 10969281
    Abstract: An illumination apparatus generates an interference fringe. An input arm receives an input light beam from a light source. A splitter splits the input light beam that has passed through the input arm into a first output arm and a second output arm. A phase modulator changes a phase difference between the output light beams of the first output arm and the second output arm. A phase detector detects the phase difference between output light beams respectively output from the first output arm and the second output arm based on a return light beam generated by combining a first reflected light beam and a second reflected light beam respectively reflected by ends of the first output arm and the second output arm.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 6, 2021
    Assignees: OLYMPUS CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daichi Watanabe, Kei Watanabe, Yu Kurata, Satomi Katayose, Ryoichi Kasahara
  • Publication number: 20210066090
    Abstract: According to one embodiment, a method of manufacturing a semiconductor device includes forming a first film on a substrate. The method further includes forming a second film on the first film. The method further includes forming a recess in the first film using the second film as a mask. The second film includes a first layer having carbon and a second layer having carbon formed on the first layer. The second layer has a second carbon density lower than a first carbon density of the first layer.
    Type: Application
    Filed: March 2, 2020
    Publication date: March 4, 2021
    Applicant: KIOXIA CORPORATION
    Inventors: Junichi HASHIMOTO, Kaori NARUMIYA, Kosuke HORIBE, Soichi YAMAZAKI, Kei WATANABE, Yusuke KONDO, Mitsuhiro OMURA, Takehiro KONDOH, Yuya MATSUBARA, Junya FUJITA, Toshiyuki SASAKI
  • Patent number: 10937799
    Abstract: In one embodiment, a semiconductor device includes electrode layers and insulating layers alternately provided on a substrate and stacked in a first direction perpendicular to a surface of the substrate, and semiconductor layers provided in the electrode layers and insulating layers, extending in the first direction, and adjacent to each other in a second direction parallel to the surface of the substrate. The device further includes first and second charge trapping layers provided between the semiconductor layers and electrode layers sandwiching the semiconductor layers in a third direction parallel to the surface of the substrate. The device further includes insulators provided between the semiconductor layers being adjacent to each other in the second direction, and including a first insulator having a first width, and a second insulator having a second width longer than the first width and having nitrogen concentration different from that in the first insulator.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: March 2, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Shinichi Nakao, Kei Watanabe
  • Patent number: 10930665
    Abstract: A semiconductor device of an embodiment includes a control circuit arranged on a substrate, a first conductive layer arranged on the control circuit and containing a first element as a main component, a multilayer structure arranged on the first conductive layer and configured such that multiple second conductive layers and multiple insulating layers are alternately stacked on each other, a memory layer penetrating the multilayer structure and reaching the first conductive layer at a bottom portion, a first layer arranged between the control circuit and the first conductive layer and containing the first element as a main component, and a second layer arranged between the control circuit and the first layer and containing, as a main component, a second element different from the first element.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: February 23, 2021
    Assignee: Toshiba Memory Corporation
    Inventors: Kosuke Horibe, Kei Watanabe, Toshiyuki Sasaki, Tomo Hasegawa, Soichi Yamazaki, Keisuke Kikutani, Jun Nishimura, Hisashi Harada, Hideyuki Kinoshita
  • Patent number: 10919137
    Abstract: A work tool, in which any one of a plurality of operation modes is selectable and which is configured to operate according to the selected operation mode, includes a switch for driving a tool accessory, an operation member, a mode switching member and a movement restricting mechanism. The operation member is configured to be held in an off-position in a non-pressed state and configured to move to an on-position in response to an external pressing operation. The mode switching member is configured to be switched between a plurality of switching positions in response to an external operation, the switching positions respectively corresponding to the operation modes. The movement restricting mechanism is configured to restrict a movement of the operation member from the off-position to the on-position in interlock with a switching operation of the mode switching member.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: February 16, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe
  • Publication number: 20210037706
    Abstract: A work machine (10) such as a lawnmower provided with a high adjusting mechanism comprises a machine main body (12), an guide member (50) provided on the machine main body so as to be rotatable around a vertical axis, a support member (60) engaged by the guide member via a converting mechanism that converts a rotational motion of the guide member into a vertical motion of the support member, a work unit (18) supported by the support member, and a sheet spring (86) provided on the machine main body and resiliently and slidably abutting against the adjusting driven member to urge the adjusting driven member in a downward direction.
    Type: Application
    Filed: July 13, 2020
    Publication date: February 11, 2021
    Inventors: Kei WATANABE, Takuma NAMIKI, Kenji ISEKI
  • Publication number: 20210037705
    Abstract: A work machine (10) such as a lawnmower provided with a high adjusting mechanism comprises a machine main body (12), an guide member (50) supported on the machine main body so as to be rotatable around a vertical axis, a support member (60) engaged by the guide member via a converting mechanism that converts a rotational motion of the guide member into a vertical motion of the support member, a work unit (18) supported by the support member, and a sheet spring (66) provided on the machine main body and resiliently and slidably abutting against the support member to urge the support member in a prescribed rotational direction.
    Type: Application
    Filed: July 13, 2020
    Publication date: February 11, 2021
    Inventors: Kei WATANABE, Takuma NAMIKI, Susumu OKUBO
  • Publication number: 20200391369
    Abstract: An impact tool includes a motor, a driving mechanism, a tool body, an elastically-connected part elastically connected to the tool body to be movable at least in a front-rear direction relative to the tool body, a detecting mechanism configured to detect pressing of a tool accessory against a workpiece, and a control part configured to control driving of the motor based on a detection result of the detecting mechanism. The detecting mechanism includes a movable member that is provided in one of the tool body and the elastically-connected part and configured to be moved by relative movement of the other of the tool body and the elastically-connected part in the front-rear direction, and a detector that is provided in the one of the tool body and the elastically-connected part and configured to detect rearward pressing of the tool accessory by detecting movement of the movable member.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 17, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Masanori FURUSAWA, Kanako HIRONO, Kei WATANABE
  • Publication number: 20200354528
    Abstract: A polyarylene sulfide resin particulate has a mean particle diameter from more than 1 ?m to 100 the uniformity is 4 or less, the melt viscosity measured at temperature of 300° C. and shear rate of 1216 sec?1 is 150 to 500 Pa·s, and the recrystallization temperature, defined as temperature of the heat generation peak at the time of crystallization when cooled from 340° C. to 50° C. at 20° C./min using a differential scanning calorimeter, is 150 to 210° C. The polyarylene sulfide resin particulate is suitable as a material powder for producing a three-dimensional molding by a powder sintering three-dimensional printer can be provided efficiently.
    Type: Application
    Filed: January 17, 2017
    Publication date: November 12, 2020
    Inventors: Kei Watanabe, Kazusada TAKEDA, Hisashi MIYAMA, Mikiya NISHIDA
  • Patent number: 10780564
    Abstract: A power tool, such as a rotary hammer or hammer drill, includes a first housing that contains a motor and a drive mechanism for linearly reciprocally driving a tool accessory, and a second housing that includes a handle, a first portion and a second portion. At least one elastic element connects the first and second housings such that the handle is biased away from the first housing. A first set of sliding contact surfaces is defined on or connected to the first housing and the first portion of the second housing. A second set of sliding contact surfaces is defined on or connected to the first housing and the second portion of the second housing. The first and second sets of sliding contact surfaces are located on opposite sides of the motor such that the rotational axis of the motor intersects the first and second sets of sliding contact surfaces.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: September 22, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe
  • Patent number: 10751868
    Abstract: It is an object of the invention to provide rational structure for vibration proofing in hammering operation. A driving motor 110 and a striking mechanism 140 are provided in a first body element 101a, and a handle 109 and a battery mounting part 160 are provided in a second body element 101b. The first and second body elements 101a, 101b are moved with respect to each other via a biasing member 181 when vibration is caused by driving of the striking mechanism 140. Further, a first region 100a close to the striking mechanism 140 forms a long-distance moving region 200 in which the first and second body elements 101a, 101b move a longer distance in a longitudinal direction than in the second region 100b less close to the striking mechanism 140.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: August 25, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Yoshiro Tada, Masanori Furusawa, Kei Watanabe