Patents by Inventor Yusuke Yamagata

Yusuke Yamagata 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: 20130131277
    Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a diphenylamine of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 5, and n is an integer from 1 to 4, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 23, 2013
    Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.
    Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Yusuke YAMAGATA, Teppei MORI, Takahiro IWAI
  • Publication number: 20130131243
    Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a thiourea of the general formula wherein R is independently at each occurrence a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, with the proviso that at least one occurrence of R is a hydrocarbon group of 1 to 20 carbons. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 23, 2013
    Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.
    Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Yusuke YAMAGATA, Teppei MORI, Takahiro IWAI
  • Publication number: 20130131234
    Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a benzimidazole of general formula (1) below wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, and m and n are each an integer from 1 to 4, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 23, 2013
    Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.
    Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Teppei MORI, Yusuke YAMAGATA, Takahiro IWAI
  • Patent number: 8367779
    Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: February 5, 2013
    Assignees: Bridgestone Sports Co., Ltd., Bridgestone Corporation
    Inventors: Yuichiro Ozawa, Tsuyoshi Nakajima, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
  • Publication number: 20120160319
    Abstract: In a solar battery including: a photoelectric conversion layer that converts light into electricity; and a reflecting electrode layer that is provided on an opposite side of a light incident side in the photoelectric conversion layer and reflects light passed through the photoelectric conversion layer to the photoelectric conversion layer side, to realize a reflecting electrode layer having excellent adhesion and thermal corrosion resistance, stable electrical characteristics and satisfactory light reflection characteristics and to obtain a solar battery having high reliability, excellent electrical characteristics and optical characteristics, the reflecting electrode layer includes, on the photoelectric conversion layer side, a metal layer containing silver as a main component and containing nitrogen.
    Type: Application
    Filed: September 4, 2009
    Publication date: June 28, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takumi Nakahata, Kazunori Inoue, Yusuke Yamagata
  • Publication number: 20120112194
    Abstract: It is an object to provide a technique to improve electric characteristics after a high-temperature treatment even when a high melting point metal barrier layer is not formed. A semiconductor device includes a gate electrode formed on a transparent insulation substrate, a semiconductor layer having a Si semiconductor active film and an ohmic low resistance Si film having an n-type conductivity, being formed in this order on the gate electrode with a gate insulation film interposed between the gate electrode and the semiconductor layer, and the source and drain electrodes directly connected to the semiconductor layer and containing at least aluminum (Al). At least nitrogen (N) is contained in a first region that is in the vicinity of an interface between a side surface of the SI semiconductor active film and the source and drain electrodes.
    Type: Application
    Filed: September 14, 2011
    Publication date: May 10, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi Ono, Naoki Nakagawa, Yusuke Yamagata, Kazunori Inoue, Nobuaki Ishiga, Kensuke Nagayama, Naoki Tsumura, Toru Takeguchi
  • Patent number: 8159749
    Abstract: An antireflection coating is formed on a transparent substrate and includes an Al film having a transmittance of lower than 10% at a wavelength of 550 nm with a thickness of 25 nm and predominantly composed of aluminum (Al), and an Al—N film formed in at least one of an upper layer and a lower layer of the Al film, having a transmittance of equal to or higher than 10% at a wavelength of 550 nm with a thickness of 25 nm, predominantly composed of Al and at least containing a nitrogen (N) element as an additive. A specific resistance of the antireflection coating is equal to or lower than 1.0×10?2 O·cm, and a reflectance of a surface of the Al—N film is equal to or lower than 50% in a visible light region.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: April 17, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazunori Inoue, Naoki Tsumura, Nobuaki Ishiga, Takeshi Ono, Naoki Nakagawa, Masafumi Agari, Yusuke Yamagata, Kensuke Nagayama
  • Publication number: 20120020056
    Abstract: A display device where concentration of a stress in a display panel is suppressed, to allow improvement in display quality, reliability and the like. A display device includes a display panel, an adhesive layer and a supporting substrate. The adhesive layer is provided on the display panel. The supporting substrate is made up of a member previously provided with curved surfaces. The display panel is bonded onto the curved surface of the supporting substrate by the adhesive layer. The supporting substrate supports the display panel in a curved form along the curved surface.
    Type: Application
    Filed: April 23, 2010
    Publication date: January 26, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Yamagata, Naoki Nakagawa, Toshiaki Fujino, Takanori Okumura, Toshiyuki Yoneda, Toru Kokogawa, Kenji Arita
  • Patent number: 8076844
    Abstract: An organic EL display device includes a glass substrate and a flattening film arranged above the glass substrate. A plurality of anodes are arranged on a surface of the flattening film. A plurality of organic EL layers are arranged on a surface of the anodes. The flattening film has irregularities formed in at least a partial surface in a region outside a region where the plurality of organic EL layers are arranged. According to such a structure, an organic EL display device in which remaining of moisture in an insulating film is suppressed can be provided.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: December 13, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kouji Oda, Hiroyuki Fuchigami, Yusuke Yamagata, Katsumi Nakagawa, Junji Ohyama
  • Patent number: 8040476
    Abstract: The display device includes a pair of insulating substrates arranged so as to be opposed, a bonding layer, and a strain suppressing plate. The bonding layer is provided on the outer surface side of one insulating substrate. The strain suppressing plate has rigidity higher than that of the insulating substrate to suppress the strain caused by curving the insulating substrate. The strain suppressing plate is fixed to the insulating substrate by the bonding layer.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: October 18, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takumi Nakahata, Takanori Okumura, Yusuke Yamagata, Naoki Nakagawa, Masafumi Agari, Tetsuya Satake, Toru Kokogawa, Kenji Arita
  • Patent number: 7834962
    Abstract: In a liquid crystal display (10) having a curved display surface, long sides of pixel structures (11) are arranged along the curve direction (Y) of the display surface and on a side of counter substrate provided is a black matrix having a black matrix opening (41a) whose length in the curve direction (Y) is not longer than E?L {(T1/2)+(T2/2)+d}/R, assuming that the length of the display surface in the curve direction (Y) is L, the thickness of an array substrate is T1, the thickness of the counter substrate is T2, the size of the gap between the array substrate and the counter substrate is d, the radius of curvature of the curved display surface is R and the length of a long side of a pixel electrode (29) provided in each of the pixel structures (11) is E. It thereby becomes possible to suppress display unevenness resulting from positional misalignment of the two substrates due to curvature and provide a liquid crystal display achieving a high-quality display image.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: November 16, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsuya Satake, Takumi Nakahata, Takanori Okumura, Yusuke Yamagata, Takeshi Ono, Naoki Nakagawa, Suguru Nagae
  • Publication number: 20100053759
    Abstract: An antireflection coating is formed on a transparent substrate and includes an Al film having a transmittance of lower than 10% at a wavelength of 550 nm with a thickness of 25 nm and predominantly composed of aluminum (Al), and an Al—N film formed in at least one of an upper layer and a lower layer of the Al film, having a transmittance of equal to or higher than 10% at a wavelength of 550 nm with a thickness of 25 nm, predominantly composed of Al and at least containing a nitrogen (N) element as an additive. A specific resistance of the antireflection coating is equal to or lower than 1.0×10?2 O·cm, and a reflectance of a surface of the Al—N film is equal to or lower than 50% in a visible light region.
    Type: Application
    Filed: August 21, 2009
    Publication date: March 4, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazunori INOUE, Naoki TSUMURA, Nobuaki ISHIGA, Takeshi ONO, Naoki NAKAGAWA, Masafumi AGARI, Yusuke YAMAGATA, Kensuke NAGAYAMA
  • Publication number: 20090290113
    Abstract: The display device includes a pair of insulating substrates arranged so as to be opposed, a bonding layer, and a strain suppressing plate. The bonding layer is provided on the outer surface side of one insulating substrate. The strain suppressing plate has rigidity higher than that of the insulating substrate to suppress the strain caused by curving the insulating substrate. The strain suppressing plate is fixed to the insulating substrate by the bonding layer.
    Type: Application
    Filed: May 26, 2009
    Publication date: November 26, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takumi Nakahata, Takanori Okumura, Yusuke Yamagata, Naoki Nakagawa, Masafumi Agari, Tetsuya Satake, Toru Kokogawa, Kenji Arita
  • Publication number: 20090161048
    Abstract: In a liquid crystal display (10) having a curved display surface, long sides of pixel structures (11) are arranged along the curve direction (Y) of the display surface and on a side of counter substrate provided is a black matrix having a black matrix opening (41a) whose length in the curve direction (Y) is not longer than E?L {(T1/2)+(T2/2)+d}/R, assuming that the length of the display surface in the curve direction (Y) is L, the thickness of an array substrate is T1, the thickness of the counter substrate is T2, the size of the gap between the array substrate and the counter substrate is d, the radius of curvature of the curved display surface is R and the length of a long side of a pixel electrode (29) provided in each of the pixel structures (11) is E. It thereby becomes possible to suppress display unevenness resulting from positional misalignment of the two substrates due to curvature and provide a liquid crystal display achieving a high-quality display image.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 25, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuya SATAKE, Takumi NAKAHATA, Takanori OKUMURA, Yusuke YAMAGATA, Takeshi ONO, Naoki NAKAGAWA, Suguru NAGAE
  • Publication number: 20080164810
    Abstract: An organic EL display device includes a glass substrate and a flattening film arranged above the glass substrate. A plurality of anodes are arranged on a surface of the flattening film. A plurality of organic EL layers are arranged on a surface of the anodes. The flattening film has irregularities formed in at least a partial surface in a region outside a region where the plurality of organic EL layers are arranged. According to such a structure, an organic EL display device in which remaining of moisture in an insulating film is suppressed can be provided.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 10, 2008
    Applicants: MITSUBISHI ELECTRIC CORPORATION, CANON KABUSHIKI KAISHA
    Inventors: Kouji ODA, Hiroyuki Fuchigami, Yusuke Yamagata, Katsumi Nakagawa, Junji Ohyama