Patents by Inventor Mai Kurihara

Mai Kurihara 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: 20240000007
    Abstract: A mower capable of reducing noise generated by rotation of a cutter blade containing an upper cutter blade and a lower cutter blade inside a housing. The lower cutter blade has a wing portion and a wing chamfered portion. The wing portion overhangs upward from a second rear end portion of the lower cutter blade on an opposite side in a rotational direction, at both end portions in a longitudinal direction. The wing chamfered portion is chamfered so that a wing outer end portion of the wing portion is inclined from an upper surface to a lower surface.
    Type: Application
    Filed: September 18, 2023
    Publication date: January 4, 2024
    Inventors: Mai Kurihara, Shingo Tsuruoka, Fumio Minami, Kouki Tsuruda, Shiho Takashima
  • Publication number: 20220369551
    Abstract: A work machine wherein motive power of a drive part is transmitted to an operation part through a shaft, the shaft being inserted into a cylindrical part and supported by a plurality of bearing members. In the cylindrical part, the plurality of bearing members are disposed on the node side of vibration generated in the shaft or the cylindrical part.
    Type: Application
    Filed: October 31, 2019
    Publication date: November 24, 2022
    Inventors: Yuki Koike, Shingo Tsuruoka, Mai Kurihara, Takuma Namiki, Gaku Naoe
  • Patent number: 11506527
    Abstract: A sensor includes a body member, a volume change body, and a detection member. The body member has a flat plate-like shape, a first end in a first direction being supported, and a storage space opening at at least one of both end faces in a thickness direction. The volume change body, whose volume changes depending on an amount of a target, is supported by the body member so that at least a part of the volume change body is stored in the storage space. The detection member is in contact with a second end in the first direction of the body member, and detects stress caused by the change in the volume of the volume change body.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 22, 2022
    Assignees: MITSUI CHEMICALS, INC., TOHOKU UNIVERSITY
    Inventors: Takahito Ono, Masaya Toda, Mai Kurihara
  • Patent number: 11490565
    Abstract: A cutter blade for a mower includes a blade base part, a cutting part positioned further outward radially than the blade base part, a descending part formed between the blade base part and the cutting part, and a curved part formed so as to curve upward from the cutting part. The descending part and the curved part have an intersection part at which an end of the descending part in the counter-rotating direction and a radially inner end of the curved part intersect.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: November 8, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Mai Kurihara, Shunsuke Kurioka, Tatsuya Yamazaki
  • Publication number: 20220228898
    Abstract: A sensor includes a body member, a volume change body, and a detection member. The body member has a flat plate-like shape, a first end in a first direction being supported, and a storage space opening at at least one of both end faces in a thickness direction. The volume change body, whose volume changes depending on an amount of a target, is supported by the body member so that at least a part of the volume change body is stored in the storage space. The detection member is in contact with a second end in the first direction of the body member, and detects stress caused by the change in the volume of the volume change body.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 21, 2022
    Applicants: MITSUI CHEMICALS, INC., TOHOKU UNIVERSITY
    Inventors: Takahito Ono, Masaya Toda, Mai Kurihara
  • Patent number: 11388857
    Abstract: A cutter blade for a lawn mower has an upper blade and a lower blade. The upper blade has an upper blade base and an upper outer end positioned above and further radially outward than the upper blade base. The lower blade has a lower blade base and a mowing section positioned below and further radially outward than the lower blade base. The upper blade base overlaps the lower blade base.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 19, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Mai Kurihara, Fumio Minami, Yuko Nishi, Hiroshi Kobayashi
  • Patent number: 11337369
    Abstract: To enable the rotational speed of the cutter blade to be set variably and to allow the operation therefor to be performed with ease and accuracy, multiple switches (74, 76) for setting the rotational speed of the cutter blade electric motor (6) to mutually different rotational speeds, and multiple operation buttons (78, 80) provided for the respective switches (74, 76) are included on a handle (20), wherein the operation buttons (78, 80) have operation parts (78A, 80A) provided with mutually different sizes.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 24, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Mai Kurihara, Yoshitaka Oota, Fumiya Isono, Yoshihiro Takahashi
  • Publication number: 20210289697
    Abstract: A mower capable of reducing noise generated by rotation of a cutter blade is provided. A mower is provided with an upper cutter blade and a lower cutter blade (15) inside a housing. The lower cutter blade has a wing portion (42) and a wing chamfered portion (51). The wing portion overhangs upward from a second rear end portion (47) of the lower cutter blade on an opposite side in a rotational direction, at both end portions (45) in a longitudinal direction. The wing chamfered portion is chamfered so that a wing outer end portion (53) of the wing portion is inclined from an upper surface to a lower surface.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 23, 2021
    Inventors: Mai Kurihara, Shingo Tsuruoka, Fumio Minami, Kouki Tsuruda, Shiho Takashima
  • Publication number: 20200400478
    Abstract: A sensor includes a body member, a volume change body, and a detection member. The body member has a flat plate-like shape, a first end in a first direction being supported, and a storage space opening at at least one of both end faces in a thickness direction. The volume change body, whose volume changes depending on an amount of a target, is supported by the body member so that at least a part of the volume change body is stored in the storage space. The detection member is in contact with a second end in the first direction of the body member, and detects stress caused by the change in the volume of the volume change body.
    Type: Application
    Filed: March 11, 2019
    Publication date: December 24, 2020
    Applicants: MITSUI CHEMICALS, INC., TOHOKU UNIVERSITY
    Inventors: Takahito Ono, Masaya Toda, Mai Kurihara
  • Publication number: 20200375103
    Abstract: To enable the rotational speed of a cutter blade to be set variably and to allow the operation therefor to be performed with ease and accuracy, multiple switches (74, 76) for setting the rotational speed of the cutter blade electric motor (6) to mutually different rotational speeds, and multiple operation buttons (78, 80) provided for the respective switches (74, 76) are provided on a handle (20), wherein the operation buttons (78, 80) have operation parts (78A, 80A) provided with mutually different sizes.
    Type: Application
    Filed: November 17, 2017
    Publication date: December 3, 2020
    Inventors: Mai KURIHARA, Yoshitaka OOTA, Fumiya ISONO, Yoshihiro TAKAHASHI
  • Patent number: 10653062
    Abstract: In one aspect, electric power equipment includes: a horizontally extending left rotary shaft operably connected with a cutter blade operation lever; a horizontally extending right rotary shaft operably connected with a travel operation lever; and a cutter blade on/off switch and a potentiometer for setting a travel speed arranged at a laterally central position substantially between the left and right rotary shafts, such that the cutter blade on/off switch is operated by the left rotary shaft and the potentiometer is operated by the right rotary shaft.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 19, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshitaka Oota, Mai Kurihara, Fumiya Isono
  • Publication number: 20200100426
    Abstract: A cutter blade for a lawn mower is provided with an upper blade and a lower blade. The upper blade has an upper blade base and an upper outer end positioned above and further radially outward than the upper blade base. The lower blade has a lower blade base and a mowing section positioned below and further radially outward than the lower blade base. The upper blade base overlaps the lower blade base.
    Type: Application
    Filed: December 26, 2017
    Publication date: April 2, 2020
    Inventors: Mai Kurihara, Fumio Minami, Yuko Nishi, Hiroshi Kobayashi
  • Publication number: 20200093060
    Abstract: A cutter blade for a mower is provided with: a blade base part; a cutting part positioned further outward radially than the blade base part; a descending part formed between the blade base part and the cutting part; and a curved part formed so as to curve upward from the cutting part. The descending part and the curved part have an intersection part at which an end of the descending part in the counter-rotating direction and a radially inner end of the curved part intersect.
    Type: Application
    Filed: December 26, 2017
    Publication date: March 26, 2020
    Inventors: Mai Kurihara, Shunsuke Kurioka, Tatsuya Yamazaki
  • Publication number: 20180146619
    Abstract: In one aspect, electric power equipment includes: a horizontally extending left rotary shaft operably connected with a cutter blade operation lever; a horizontally extending right rotary shaft operably connected with a travel operation lever; and a cutter blade on/off switch and a potentiometer for setting a travel speed arranged at a laterally central position substantially between the left and right rotary shafts, such that the cutter blade on/off switch is operated by the left rotary shaft and the potentiometer is operated by the right rotary shaft.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 31, 2018
    Inventors: Yoshitaka OOTA, Mai KURIHARA, Fumiya ISONO
  • Patent number: 9657117
    Abstract: [Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [?] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 23, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kuniaki Kawabe, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
  • Patent number: 9260549
    Abstract: A resin fine powder which consists of a 4-methyl-1-pentene polymer that exhibits a limiting viscosity [?] of 1.0×10?2 to less than 3.0 dl/g as determined in decalin at 135° C. and which has a median particle diameter [D50] of 1.0×10?1 to 5.0×10 ?m; and a composition which comprises the resin fine powder and at least one sinterable powder selected from the group consisting of metal powders and ceramic powders.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: February 16, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kuniaki Kawabe, Toshiyuki Itou, Mai Kurihara, Kazutoshi Fujihara, Ryouichi Seki
  • Publication number: 20140248488
    Abstract: [Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [?] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kuniaki KAWABE, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
  • Patent number: 8765872
    Abstract: [Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [?] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: July 1, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kuniaki Kawabe, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
  • Patent number: 8354470
    Abstract: Resin compositions of the invention contain an olefin polymer wax having higher heat resistance than achieved heretofore, high compatibility with resins and excellent mold-releasing properties. A resin composition (X) of the invention is obtained by blending a resin (A) having a melting point Tm of not less than 200° C. and an olefin polymer wax component (B), the olefin polymer wax component (B) including a cyclic olefin polymer wax (B-1) having structural units (a) and (b) described below, the cyclic olefin polymer wax (B-1) containing the structural units (b) at 0.05 to 50 mol % based on all the structural units in the polymer; (a) units derived from ethylene (b) units derived from a cyclic olefin.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: January 15, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Mai Kurihara, Kuniaki Kawabe, Akinori Etoh, Toshiyuki Itou
  • Publication number: 20110165416
    Abstract: [Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [?] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 7, 2011
    Inventors: Kuniaki KAWABE, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto