Patents by Inventor Masanori Yoshihara
Masanori Yoshihara 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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Patent number: 8336660Abstract: A snowmobile includes a vehicle body, a track belt, an engine, a left-and-right pair of skis, a suspension mechanism, and a steering mechanism. The track belt is located on a lower portion of the vehicle body. The engine drives the track belt. The suspension mechanism is a mechanism arranged to support the pair of skis so as to move in a vertical direction with respect to the vehicle body, and to support the pair of skis in an associated manner so that one of the skis moves downwards relative to the vehicle body when the other ski moves upwards relative to the vehicle body. The steering mechanism is a mechanism arranged to steer the pair of skis.Type: GrantFiled: December 4, 2009Date of Patent: December 25, 2012Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Kotaro Ogura, Shinobu Amano, Masanori Yoshihara
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Patent number: 8302721Abstract: A snow vehicle includes a vehicle body, an arm member supported with respect to the vehicle body, a knuckle supported with respect to the arm member at a predetermined support point, a coupling unit arranged to couple the knuckle to the arm member, a ski member, and a ski coupling unit. The ski coupling unit couples the ski member to the knuckle such that the ski member pivots about a pitching axis with respect to the knuckle, the pitching axis extends in a width direction of the ski member. The pitching axis is disposed such that, when the vehicle is in a reference attitude of being placed on a horizontal surface, a horizontal distance from the pitching axis to a reference normal directed to the horizontal surface from the support point is shorter than a horizontal distance from the pitching axis to a steering axis.Type: GrantFiled: May 12, 2010Date of Patent: November 6, 2012Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Masanori Yoshihara, Kentaro Kaminishi
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Patent number: 8201898Abstract: A track belt for a snow vehicle includes a belt body, a first lug, outer end circumferential regions, and contacting portions. The first lug is disposed at a central portion in a right/left direction of the belt body. The outer end circumferential regions are provided at both end portions in the right and left directions of the belt body, and include second lugs each having a height from the outer circumferential surface being no more than a half of a height of the first lug, or do not include lugs protruded from the outer circumferential surface of the belt body. The contacting portions are provided at the inner circumferential surface such that positions of the contacting portions in the right/left direction overlap with the outer end circumferential regions and are arranged to contact a rotating wheel member that opposes a snow surface across the belt body.Type: GrantFiled: April 27, 2010Date of Patent: June 19, 2012Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Masanori Yoshihara
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Patent number: 8202610Abstract: A protective film for polarizing plate comprising k layers (k is an integer of 2 or more) of thermoplastic resin layer laminated, wherein a refractive index ni(380) at a wavelength of 380 nm and a refractive index ni(780) at a wavelength of 780 nm in the i th thermoplastic resin layer as well as a refractive index ni+1(380) at a wavelength of 380 nm and a refractive index ni+1(780) at a wavelength of 780 nm in the i+1 th thermoplastic resin layer have a relationship in ?ni(380)?ni+1(380)|?|ni(780)?ni+1(780)??0.02 (where, i is an integer of 1 to k?1). A polarizing plate is obtained by bonding the protective film for the polarizing plate and a polarizer. And a liquid crystal display comprising the polarizing plate and a liquid crystal panel.Type: GrantFiled: July 11, 2011Date of Patent: June 19, 2012Assignee: Zeon CorporationInventors: Masanori Yoshihara, Tetsuya Toyoshima, Kohei Arakawa
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Patent number: 8139181Abstract: Provided are a polarization plate which has a high mechanical strength, which does not impair a visibility even under a high temperature and high humidity, which is excellent in flexibility and abrasion resistance, and which reduces a visible disturbance such as color unevenness due to a size change, as well as a liquid crystal display device using the polarization plate. A film composed of a plurality of layers composed mainly of thermoplastic resins is used as a first protection film used for a visible side of the polarization plate, and at least one surface layer of this first protection film is composed mainly of an acrylic resin. Furthermore, a second protection film having a specific property is disposed at a side of a liquid crystal cell.Type: GrantFiled: March 28, 2007Date of Patent: March 20, 2012Assignee: Zeon CorporationInventors: Masanori Yoshihara, Kouhei Arakawa, Kyosuke Inoue, Taku Hatano, Tetsuya Toyoshima
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Publication number: 20110278083Abstract: A snow vehicle includes a vehicle body, an arm member supported with respect to the vehicle body, a knuckle supported with respect to the arm member at a predetermined support point, a coupling unit arranged to couple the knuckle to the arm member, a ski member, and a ski coupling unit. The ski coupling unit couples the ski member to the knuckle such that the ski member pivots about a pitching axis with respect to the knuckle, the pitching axis extends in a width direction of the ski member. The pitching axis is disposed such that, when the vehicle is in a reference attitude of being placed on a horizontal surface, a horizontal distance from the pitching axis to a reference normal directed to the horizontal surface from the support point is shorter than a horizontal distance from the pitching axis to a steering axis.Type: ApplicationFiled: May 12, 2010Publication date: November 17, 2011Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Masanori YOSHIHARA, Kentaro KAMINISHI
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Publication number: 20110259654Abstract: A track belt for a snow vehicle includes a belt body, a first lug, outer end circumferential regions, and contacting portions. The first lug is disposed at a central portion in a right/left direction of the belt body. The outer end circumferential regions are provided at both end portions in the right and left directions of the belt body, and include second lugs each having a height from the outer circumferential surface being no more than a half of a height of the first lug, or do not include lugs protruded from the outer circumferential surface of the belt body. The contacting portions are provided at the inner circumferential surface such that positions of the contacting portions in the right/left direction overlap with the outer end circumferential regions and are arranged to contact a rotating wheel member that opposes a snow surface across the belt body.Type: ApplicationFiled: April 27, 2010Publication date: October 27, 2011Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Masanori YOSHIHARA
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Publication number: 20110261298Abstract: A protective film for polarizing plate comprising k layers (k is an integer of 2 or more) of thermoplastic resin layer laminated, wherein a refractive index ni(380) at a wavelength of 380 nm and a refractive index ni(780) at a wavelength of 780 nm in the i th thermoplastic resin layer as well as a refractive index ni+1(380) at a wavelength of 380 nm and a refractive index ni+1(780) at a wavelength of 780 nm in the i+1 th thermoplastic resin layer have a relationship in ||ni(380)?ni+1(380)|?|ni(780)?ni+1(780)||?0.02 (where, i is an integer of 1 to k?1). A polarizing plate is obtained by bonding the protective film for the polarizing plate and a polarizer. And a liquid crystal display comprising the polarizing plate and a liquid crystal panel.Type: ApplicationFiled: July 11, 2011Publication date: October 27, 2011Inventors: Masanori YOSHIHARA, Tetsuya TOYOSHIMA, Kohei ARAKAWA
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Patent number: 7998563Abstract: A protective film for polarizing plate comprising k layers (k is an integer of 2 or more) of thermoplastic resin layer laminated, wherein a refractive index ni(380) at a wavelength of 380 nm and a refractive index ni(780) at a wavelength of 780 nm in the i th thermoplastic resin layer as well as a refractive index ni+1(380) at a wavelength of 380 nm and a refractive index ni+1(780) at a wavelength of 780 nm in the i+1 th thermoplastic resin layer have a relationship in ?ni(380)?ni+1(380)|?|ni(780)?ni+1(780)??0.02 (where, i is an integer of 1 to k?1). A polarizing plate is obtained by bonding the protective film for the polarizing plate and a polarizer. And a liquid crystal display comprising the polarizing plate and a liquid crystal panel.Type: GrantFiled: June 21, 2006Date of Patent: August 16, 2011Assignee: Zeon CorporationInventors: Masanori Yoshihara, Tetsuya Toyoshima, Kohei Arakawa
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Patent number: 7964251Abstract: A liquid crystal display device of an in-plane switching mode comprises a pair of polarizing plates which are constituted with a polarizing plate at the output side comprising a polarizer at the output side and a polarizing plate at the incident side comprising a polarizer at the incident side having a transmission axis approximately perpendicular to a transmission axis of the polarizer at the output side and two or more sheets of optically anisotropic members and liquid crystal cells disposed between the pair of polarizing plates. The device exhibits excellent scratch resistance and excellent quality of black depth and uniform and high contrast in viewing at any angles.Type: GrantFiled: December 26, 2005Date of Patent: June 21, 2011Assignee: Panasonic Electric Works Co., Ltd.Inventors: Takeyuki Yamaki, Hiroshi Yokogawa, Akira Tsujimoto, Ryozo Fukuzaki, Tetsuya Toyoshima, Masanori Yoshihara, Kohei Arakawa
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Patent number: 7918299Abstract: A rear suspension of a snow vehicle is provided with a slide rail which guides a track belt. The slide rail is made of metal and formed by extrusion. A bent portion is provided on an end of the slide rail to extend to a tip end thereof with a position toward the end being a starting point of bending. A projection, to which one end side of a torque arm supporting a vehicle body is connected, is arranged toward the end of the slide rail so as to project upwards. The projection includes a bracket provided separately from the slide rail and the starting point of bending is positioned in a length range of the projection.Type: GrantFiled: April 10, 2008Date of Patent: April 5, 2011Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Masanori Yoshihara
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Publication number: 20100140007Abstract: A snowmobile includes a vehicle body, a track belt, an engine, a left-and-right pair of skis, a suspension mechanism, and a steering mechanism. The track belt is located on a lower portion of the vehicle body. The engine drives the track belt. The suspension mechanism is a mechanism arranged to support the pair of skis so as to move in a vertical direction with respect to the vehicle body, and to support the pair of skis in an associated manner so that one of the skis moves downwards relative to the vehicle body when the other ski moves upwards relative to the vehicle body. The steering mechanism is a mechanism arranged to steer the pair of skis.Type: ApplicationFiled: December 4, 2009Publication date: June 10, 2010Applicant: Yamaha Hatsudoki Kabushiki KaishaInventors: Kotaro OGURA, Shinobu AMANO, Masanori YOSHIHARA
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Publication number: 20100134879Abstract: The present invention is to provide a display screen protection film that exhibits uniform in-plane ultraviolet absorption property, excellent mechanical strength, flexibility, heat resistance and optical property, and to provide a polarization plate wherein the display screen protection film is used as a polarization plate protection film. The display screen protection film obtained by stretching 1.2 to 6 times a film having a thickness of 20 to 300 ?m wherein an acrylic resin layer (B1) containing no ultraviolet light absorbing agent is disposed on one surface of an acrylic resin layer (A) containing the ultraviolet light absorbing agent, and an acrylic resin layer (B2) containing no ultraviolet light absorbing agent is disposed on another surface thereof.Type: ApplicationFiled: April 24, 2008Publication date: June 3, 2010Inventors: Masanori Yoshihara, Tetsuya Toyoshima, Jiro Ishihara
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Publication number: 20090317592Abstract: There is provided an optical film comprising: a multilayer base material film comprising an a-layer composed of a resin material (a) having a flexural modulus of 3 GPa to 4 GPa and a b-layer composed of a resin material (b) having a flexural modulus lower than the flexural modulus of the resin material (a), at least one of outer surfaces of the base material film being roughened by an emboss process or a blast process; and a functional layer, such as a hard coat layer and an anti-reflective layer, laminated on the roughened surface of the base material film. The optical film is used as a protective film for a liquid crystal display element, such as a polarizing plate.Type: ApplicationFiled: December 14, 2007Publication date: December 24, 2009Inventors: Yasumasa Yoshitomi, Masanori Yoshihara, Kohei Arakawa
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Publication number: 20090257003Abstract: Provided are a polarization plate which has a high mechanical strength, which does not impair a visibility even under a high temperature and high humidity, which is excellent in flexibility and abrasion resistance, and which reduces a visible disturbance such as color unevenness due to a size change, as well as a liquid crystal display device using the polarization plate. A film composed of a plurality of layers composed mainly of thermoplastic resins is used as a first protection film used for a visible side of the polarization plate, and at least one surface layer of this first protection film is composed mainly of an acrylic resin. Furthermore, a second protection film having a specific property is disposed at a side of a liquid crystal cell.Type: ApplicationFiled: March 28, 2007Publication date: October 15, 2009Applicant: ZEON CORPORATIONInventors: Masanori Yoshihara, Kouhei Arakawa, Kyosuke Inoue, Taku Hatano, Tetsuya Toyoshima
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Publication number: 20090237786Abstract: A protective film for polarizing plate made by laminating k layers (k is an integer of 2 or more) of thermoplastic resin, in which a refractive index ni(?) at a wavelength in the range of 380 to 780 nm of the i th thermoplastic resin layer as well as a refractive index ni+1(?) at a wavelength in the range of 380 to 780 nm of the i+1 th thermoplastic resin layer have a relationship of ?ni(?)?ni+1(?)|?0.05 (where, i is an integer of 1 to k?1); and a polarizing plate comprising a laminate the protective film for polarizing plate and a polarizer.Type: ApplicationFiled: June 21, 2006Publication date: September 24, 2009Applicant: Zeon CorporationInventors: Masanori Yoshihara, Tetsuya Toyoshima, Kohei Arakama
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Publication number: 20090188737Abstract: A rear suspension of a snow vehicle is provided with a slide rail which guides a track belt. The slide rail is made of metal and formed by extrusion. A bent portion is provided on an end of the slide rail to extend to a tip end thereof with a position toward the end being a starting point of bending. A projection, to which one end side of a torque arm supporting a vehicle body is connected, is arranged toward the end of the slide rail so as to project upwards. The projection includes a bracket provided separately from the slide rail and the starting point of bending is positioned in a length range of the projection.Type: ApplicationFiled: April 10, 2008Publication date: July 30, 2009Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Masanori YOSHIHARA
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Patent number: 7523799Abstract: A snowmobile includes a vehicle frame, a track belt to which driving force is transferred from an engine mounted on the vehicle frame, a guide rail guiding the track belt, a frontal connecting member rotatably connected to the vehicle frame and the guide rail in a front portion of the snowmobile, a rear connecting member rotatably connected to the vehicle frame and the guide rail in a rear portion of the snowmobile, a first link member rotatably connected to the frontal connecting member, and a second link member rotatably connected to the first link member and the guide rail, and a shock absorber rotatably connected to the first link member or the second link member via a first connecting member. The first connecting member is provided above a second connecting member connecting the guide rail and the second link member.Type: GrantFiled: February 2, 2006Date of Patent: April 28, 2009Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Masanori Yoshihara
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Publication number: 20090086320Abstract: A protective film for polarizing plate comprising k layers (k is an integer of 2 or more) of thermoplastic resin layer laminated, wherein a refractive index ni(380) at a wavelength of 380 nm and a refractive index ni(780) at a wavelength of 780 nm in the i th thermoplastic resin layer as well as a refractive index ni+1(380) at a wavelength of 380 nm and a refractive index ni+1(780) at a wavelength of 780 nm in the i+1 th thermoplastic resin layer have a relationship in ?ni(380)?ni+1(380)|?|ni(780)?ni+1(780)??0.02 (where, i is an integer of 1 to k?1). A polarizing plate is obtained by bonding the protective film for the polarizing plate and a polarizer. And a liquid crystal display comprising the polarizing plate and a liquid crystal panel.Type: ApplicationFiled: June 21, 2006Publication date: April 2, 2009Applicant: ZEON CORPORATIONInventors: Masanori Yoshihara, Tetsuya Toyoshima, Kohei Arakawa
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Patent number: D692797Type: GrantFiled: January 18, 2013Date of Patent: November 5, 2013Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Shintaro Ohnishi, Ikuo Namiki, Masanori Yoshihara, Ikuhiko Hirami, Yoshihisa Matsubara