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).
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Publication number: 20240000007Abstract: 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: ApplicationFiled: September 18, 2023Publication date: January 4, 2024Inventors: Mai Kurihara, Shingo Tsuruoka, Fumio Minami, Kouki Tsuruda, Shiho Takashima
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Publication number: 20220369551Abstract: 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: ApplicationFiled: October 31, 2019Publication date: November 24, 2022Inventors: Yuki Koike, Shingo Tsuruoka, Mai Kurihara, Takuma Namiki, Gaku Naoe
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Patent number: 11506527Abstract: 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: GrantFiled: March 11, 2019Date of Patent: November 22, 2022Assignees: MITSUI CHEMICALS, INC., TOHOKU UNIVERSITYInventors: Takahito Ono, Masaya Toda, Mai Kurihara
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Patent number: 11490565Abstract: 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: GrantFiled: December 26, 2017Date of Patent: November 8, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Mai Kurihara, Shunsuke Kurioka, Tatsuya Yamazaki
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Publication number: 20220228898Abstract: 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: ApplicationFiled: March 11, 2019Publication date: July 21, 2022Applicants: MITSUI CHEMICALS, INC., TOHOKU UNIVERSITYInventors: Takahito Ono, Masaya Toda, Mai Kurihara
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Patent number: 11388857Abstract: 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: GrantFiled: December 26, 2017Date of Patent: July 19, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Mai Kurihara, Fumio Minami, Yuko Nishi, Hiroshi Kobayashi
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Patent number: 11337369Abstract: 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: GrantFiled: November 17, 2017Date of Patent: May 24, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Mai Kurihara, Yoshitaka Oota, Fumiya Isono, Yoshihiro Takahashi
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Publication number: 20210289697Abstract: 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: ApplicationFiled: March 19, 2021Publication date: September 23, 2021Inventors: Mai Kurihara, Shingo Tsuruoka, Fumio Minami, Kouki Tsuruda, Shiho Takashima
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Publication number: 20200400478Abstract: 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: ApplicationFiled: March 11, 2019Publication date: December 24, 2020Applicants: MITSUI CHEMICALS, INC., TOHOKU UNIVERSITYInventors: Takahito Ono, Masaya Toda, Mai Kurihara
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Publication number: 20200375103Abstract: 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: ApplicationFiled: November 17, 2017Publication date: December 3, 2020Inventors: Mai KURIHARA, Yoshitaka OOTA, Fumiya ISONO, Yoshihiro TAKAHASHI
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Patent number: 10653062Abstract: 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: GrantFiled: November 21, 2017Date of Patent: May 19, 2020Assignee: Honda Motor Co., Ltd.Inventors: Yoshitaka Oota, Mai Kurihara, Fumiya Isono
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Publication number: 20200100426Abstract: 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: ApplicationFiled: December 26, 2017Publication date: April 2, 2020Inventors: Mai Kurihara, Fumio Minami, Yuko Nishi, Hiroshi Kobayashi
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Publication number: 20200093060Abstract: 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: ApplicationFiled: December 26, 2017Publication date: March 26, 2020Inventors: Mai Kurihara, Shunsuke Kurioka, Tatsuya Yamazaki
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Publication number: 20180146619Abstract: 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: ApplicationFiled: November 21, 2017Publication date: May 31, 2018Inventors: Yoshitaka OOTA, Mai KURIHARA, Fumiya ISONO
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Patent number: 9657117Abstract: [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: GrantFiled: May 9, 2014Date of Patent: May 23, 2017Assignee: 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
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Patent number: 9260549Abstract: 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: GrantFiled: February 8, 2011Date of Patent: February 16, 2016Assignee: MITSUI CHEMICALS, INC.Inventors: Kuniaki Kawabe, Toshiyuki Itou, Mai Kurihara, Kazutoshi Fujihara, Ryouichi Seki
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Publication number: 20140248488Abstract: [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: ApplicationFiled: May 9, 2014Publication date: September 4, 2014Applicant: 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
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Patent number: 8765872Abstract: [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: GrantFiled: January 10, 2011Date of Patent: July 1, 2014Assignee: 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
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Patent number: 8354470Abstract: 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: GrantFiled: June 12, 2009Date of Patent: January 15, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Mai Kurihara, Kuniaki Kawabe, Akinori Etoh, Toshiyuki Itou
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Publication number: 20110165416Abstract: [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: ApplicationFiled: January 10, 2011Publication date: July 7, 2011Inventors: Kuniaki KAWABE, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto