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).
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Publication number: 20210129307Abstract: 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: ApplicationFiled: October 20, 2020Publication date: May 6, 2021Applicant: MAKITA CORPORATIONInventors: Hideki TSUJI, Hajime TAKEUCHI, Kei WATANABE, Kazuo MURAMATSU, Masahiro MAEGAWA
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Patent number: 10994784Abstract: 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: GrantFiled: September 6, 2019Date of Patent: May 4, 2021Assignee: HONDA MOTOR CO. LTD.Inventors: Kei Watanabe, Keita Ishihara
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Patent number: 10969281Abstract: 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: GrantFiled: July 22, 2019Date of Patent: April 6, 2021Assignees: OLYMPUS CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Daichi Watanabe, Kei Watanabe, Yu Kurata, Satomi Katayose, Ryoichi Kasahara
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Publication number: 20210066090Abstract: 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: ApplicationFiled: March 2, 2020Publication date: March 4, 2021Applicant: KIOXIA CORPORATIONInventors: Junichi HASHIMOTO, Kaori NARUMIYA, Kosuke HORIBE, Soichi YAMAZAKI, Kei WATANABE, Yusuke KONDO, Mitsuhiro OMURA, Takehiro KONDOH, Yuya MATSUBARA, Junya FUJITA, Toshiyuki SASAKI
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Patent number: 10937799Abstract: 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: GrantFiled: March 4, 2019Date of Patent: March 2, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Shinichi Nakao, Kei Watanabe
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Patent number: 10930665Abstract: 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: GrantFiled: August 9, 2019Date of Patent: February 23, 2021Assignee: Toshiba Memory CorporationInventors: Kosuke Horibe, Kei Watanabe, Toshiyuki Sasaki, Tomo Hasegawa, Soichi Yamazaki, Keisuke Kikutani, Jun Nishimura, Hisashi Harada, Hideyuki Kinoshita
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Patent number: 10919137Abstract: 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: GrantFiled: March 1, 2018Date of Patent: February 16, 2021Assignee: MAKITA CORPORATIONInventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe
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Publication number: 20210037705Abstract: 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: ApplicationFiled: July 13, 2020Publication date: February 11, 2021Inventors: Kei WATANABE, Takuma NAMIKI, Susumu OKUBO
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Publication number: 20210037706Abstract: 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: ApplicationFiled: July 13, 2020Publication date: February 11, 2021Inventors: Kei WATANABE, Takuma NAMIKI, Kenji ISEKI
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Publication number: 20200391369Abstract: 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: ApplicationFiled: May 27, 2020Publication date: December 17, 2020Applicant: MAKITA CORPORATIONInventors: Masanori FURUSAWA, Kanako HIRONO, Kei WATANABE
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Publication number: 20200354528Abstract: 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: ApplicationFiled: January 17, 2017Publication date: November 12, 2020Inventors: Kei Watanabe, Kazusada TAKEDA, Hisashi MIYAMA, Mikiya NISHIDA
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Patent number: 10780564Abstract: 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: GrantFiled: October 4, 2017Date of Patent: September 22, 2020Assignee: MAKITA CORPORATIONInventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe
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Patent number: 10751868Abstract: 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: GrantFiled: November 27, 2015Date of Patent: August 25, 2020Assignee: MAKITA CORPORATIONInventors: Yoshiro Tada, Masanori Furusawa, Kei Watanabe
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Publication number: 20200241206Abstract: Provided is an optical multiplexing circuit. The waveguide width of each waveguide is set such that the effective refractive index of a first optical waveguide with a first light beam in the 0-th order mode is equal to the effective refractive index of a MM conversion waveguide with the first light beam in the higher order mode and that the effective refractive indexes of the MM conversion waveguide with second and third light beams in the higher order mode are not equal to the effective refractive indexes of a second optical waveguide with the second and third light beams in the 0-th order mode.Type: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Inventors: Junji Sakamoto, Kei Watanabe, Toshikazu Hashimoto
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Publication number: 20200235117Abstract: 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: ApplicationFiled: August 9, 2019Publication date: July 23, 2020Applicant: Toshiba Memory CorporationInventors: Kosuke HORIBE, Kei Watanabe, Toshiyuki Sasaki, Tomo Hasegawa, Soichi Yamazaki, Keisuke Kikutani, Jun Nishimura, Hisashi Harada, Hideyuki Kinoshita
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Patent number: 10688644Abstract: A power tool includes a motor, a housing, a battery mounting part, and a battery protection part. The battery mounting part is provided to the housing on an opposite side from a working axis across the motor in an extending direction of a rotation axis of the motor. The battery mounting part is configured such that one end portion of at least one battery is mounted to the battery mounting part and an opposite end portion of the at least one battery in the extending direction of the rotation axis is exposed from the housing. The battery protection part is provided to an outer surface portion of the housing and configured to protect at least one corner region of the opposite end portion of the at least one battery against external force when the one end portion is mounted to the battery mounting part.Type: GrantFiled: November 2, 2017Date of Patent: June 23, 2020Assignee: MAKITA CORPORATIONInventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe, Takafumi Kotsuji, Keisuke Yamada
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Publication number: 20200151844Abstract: An image processing apparatus includes a provisional model generation portion, a matching score obtaining portion, an evaluation portion, and a determination portion. The provisional model generation portion is configured to generate a plurality of provisional models. The matching score obtaining portion is configured to perform the pattern matching between each of the plurality of provisional models and each of a plurality of evaluation images, and obtain a first matching score group that is a set of first matching scores indicating a highest degree of similarity and a second matching score group. The evaluation portion is configured to calculate an evaluation value from the first matching score group and the second matching score group. The determination portion is configured to determine a matching model from among the plurality of provisional models on a basis of the calculated evaluation value.Type: ApplicationFiled: October 23, 2019Publication date: May 14, 2020Inventors: Hiroshi Kitajima, Kei Watanabe
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Patent number: 10649144Abstract: Provided is an optical multiplexing circuit. The waveguide width of each waveguide is set such that the effective refractive index of a first optical waveguide with a first light beam in the 0-th order mode is equal to the effective refractive index of a MM conversion waveguide with the first light beam in the higher order mode and that the effective refractive indexes of the MM conversion waveguide with second and third light beams in the higher order mode are not equal to the effective refractive indexes of a second optical waveguide with the second and third light beams in the 0-th order mode.Type: GrantFiled: February 17, 2017Date of Patent: May 12, 2020Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Junji Sakamoto, Kei Watanabe, Toshikazu Hashimoto
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Publication number: 20200127007Abstract: A method of manufacturing a semiconductor device according to one embodiment includes forming a first film including a first metal above a processing target member. The method includes forming a second film including two or more types of element out of a second metal, carbon, and boron above the first film. The method includes forming a third film including the first metal above the second film. The method includes forming a mask film by providing an opening part to a stacked film including the first film, the second film and the third film. The method includes processing the processing target member by performing etching using the mask film as a mask.Type: ApplicationFiled: December 18, 2019Publication date: April 23, 2020Applicant: TOSHIBA MEMORY CORPORATIONInventors: Ryohei KITAO, Atsuko SAKATA, Takeshi ISHIZAKI, Satoshi WAKATSUKI, Shinichi NAKAO, Shunsuke OCHIAI, Kei WATANABE
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Publication number: 20200126204Abstract: An image processing apparatus includes an identifiability value obtaining portion, an inspection region generation portion, and an image inspection portion. The identifiability value obtaining portion is configured to obtain, for each pixel address constituting an image plane, an identifiability value for identifying which of a first inspection result and a second inspection result the pixel address corresponds to. The inspection region generation portion is configured to generate an inspection region serving as a target of image processing by setting a portion of the image plane including the pixel address where the obtained identifiability value satisfies a specific condition as the inspection region. The image inspection portion is configured to perform image processing for inspection on a partial image corresponding to the inspection region among a third image obtained by imaging a third target object.Type: ApplicationFiled: October 18, 2019Publication date: April 23, 2020Inventor: Kei Watanabe