Patents by Inventor Fuminori Ishikawa

Fuminori Ishikawa 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).

  • Patent number: 7948140
    Abstract: When electric wires (joint conductors) are disposed adjacent each other in a peeled state of coatings, a gap corresponding to the total thickness of both conductors' insulating films as skin layers is formed between end joined face portions of the conductors. The gap becomes larger because the conductors are tapered. Therefore, the adhesion between both conductors is impaired, with a consequent fear of occurrence of joining imperfection. In opposed joined face portions of electric wires (joint conductors), the conductors are deformed from the tips of their axes to the joined face side in such a manner that exposed portions at the tips of the conductors and insulating film faces located in the vicinity thereof are flush with each other or the exposed portions are projected.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: May 24, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Sakai, Yoshimi Mori, Yasuhiko Kimura, Masahiko Honma, Fuminori Ishikawa
  • Publication number: 20100038109
    Abstract: When electric wires (joint conductors) are disposed adjacent each other in a peeled state of coatings, a gap corresponding to the total thickness of both conductors' insulating films as skin layers is formed between end joined face portions of the conductors. The gap becomes larger because the conductors are tapered. Therefore, the adhesion between both conductors is impaired, with a consequent fear of occurrence of joining imperfection. In opposed joined face portions of electric wires (joint conductors), the conductors are deformed from the tips of their axes to the joined face side in such a manner that exposed portions at the tips of the conductors and insulating film faces located in the vicinity thereof are flush with each other or the exposed portions are projected.
    Type: Application
    Filed: October 19, 2009
    Publication date: February 18, 2010
    Applicant: Hitachi, Ltd.
    Inventors: Takeshi SAKAI, Yoshimi Mori, Yasuhiko Kimura, Masahiko Honma, Fuminori Ishikawa
  • Patent number: 7615906
    Abstract: When electric wires (joint conductors) are disposed adjacent each other in a peeled state of coatings, a gap corresponding to the total thickness of both conductors' insulating films as skin layers is formed between end joined face portions of the conductors. The gap becomes larger because the conductors are tapered. Therefore, the adhesion between both conductors is impaired, with a consequent fear of occurrence of joining imperfection. In opposed joined face portions of electric wires (joint conductors), the conductors are deformed from the tips of their axes to the joined face side in such a manner that exposed portions at the tips of the conductors and insulating film faces located in the vicinity thereof are flush with each other or the exposed portions are projected.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: November 10, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Sakai, Yoshimi Mori, Yasuhiko Kimura, Masahiko Honma, Fuminori Ishikawa
  • Publication number: 20060267440
    Abstract: When electric wires (joint conductors) are disposed adjacent each other in a peeled state of coatings, a gap corresponding to the total thickness of both conductors' insulating films as skin layers is formed between end joined face portions of the conductors. The gap becomes larger because the conductors are tapered. Therefore, the adhesion between both conductors is impaired, with a consequent fear of occurrence of joining imperfection. In opposed joined face portions of electric wires (joint conductors), the conductors are deformed from the tips of their axes to the joined face side in such a manner that exposed portions at the tips of the conductors and insulating film faces located in the vicinity thereof are flush with each other or the exposed portions are projected.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 30, 2006
    Applicant: Hitachi, Ltd.
    Inventors: Takeshi Sakai, Yoshimi Mori, Yasuhiko Kimura, Masahiko Honma, Fuminori Ishikawa
  • Patent number: 7128621
    Abstract: A connecting structure in which the electric cable having an insulated coating and the electrically conductive member with non-insulated coating are connected through a connecting terminal having a junction support member by applying an electric current, heating and applying a pressure; and the electric cables having an insulated coating and are connected mutually to one another through a connecting terminal having an electrically conductive member with non-insulated coating and a junction support member by applying an electric current, heating and applying a pressure, and a connecting method in which those connections are established by applying an electric current, applying a heat and applying a pressure, and a rotating electric machinery having that connecting structure and an alternating current generator using this machinery.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: October 31, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Shin Onose, Katsuyoshi Terakado, Fuminori Ishikawa, Masamichi Kase, Masaki Okamura
  • Patent number: 6955287
    Abstract: An upper shearing blade equipped with a protrusion of a triangle-columnar shape and a lower shearing blade equipped with a protrusion of the same shape are applied onto the overlapped portion of metal plates to be bonded, and then pressed into the metal plates in an oblique direction inclined with respect to the thickness direction by a stroke in such a range that the metal plates are not completely cut off. The operating loci of the upper, shearing blade and the lower shearing blade are overlapped each other so that one falls inside the other, and the sheared surfaces of the metal plates are formed into a bonded portion by plastic flow deformation. Therein, since a compressive force is applied onto the portions to be bonded, the portion being defined by the amount of overlap, and the portions are compressed to form a compressed portion after completion of bonding, the bonding strength enhances.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: October 18, 2005
    Assignees: Hitachi, Ltd., Pohang Iron and Steel Co., Ltd., Research Institution of Industrial Science and Technology
    Inventors: Kenji Horii, Yasutsugu Yoshimura, Tadashi Nishino, Takashi Kamoshita, Takayoshi Tomino, Fuminori Ishikawa, Takao Funamoto, Takashi Mashiko, Kenjiro Narita, Jong-Keun Kim, Ki-Chol Kim, Jong-Sub Lee, Hwang-Kyu Hwang, Jung-Sik Lee, Jin-Hee Kim
  • Publication number: 20050020147
    Abstract: A connecting structure in which the electric cable having an insulated coating and the electrically conductive member with non-insulated coating are connected through a connecting terminal having a junction support member by applying an electric current, heating and applying a pressure; and the electric cables having an insulated coating and are connected mutually to one another through a connecting terminal having an electrically conductive member with non-insulated coating and a junction support member by applying an electric current, heating and applying a pressure, and a connecting method in which those connections are established by applying an electric current, applying a heat and applying a pressure, and a rotating electric machinery having that connecting structure and an alternating current generator using this machinery.
    Type: Application
    Filed: August 19, 2004
    Publication date: January 27, 2005
    Inventors: Shin Onose, Katsuyoshi Terakado, Fuminori Ishikawa, Masamichi Kase, Masaki Okamura
  • Publication number: 20030134522
    Abstract: A connecting structure in which the electric cable having an insulated coating and the electrically conductive member with non-insulated coating are connected through a connecting terminal having a junction support member by applying an electric current, heating and applying a pressure; and the electric cables having an insulated coating and are connected mutually to one another through a connecting terminal having an electrically conductive member with non-insulated coating and a junction support member by applying an electric current, heating and applying a pressure, and a connecting method in which those connections are established by applying an electric current, applying a heat and applying a pressure, and a rotating electric machinery having that connecting structure and an alternating current generator using this machinery.
    Type: Application
    Filed: September 20, 2002
    Publication date: July 17, 2003
    Applicant: HITACHI, LTD.
    Inventors: Shin Onose, Katsuyoshi Terakado, Fuminori Ishikawa, Masamichi Kase, Masaki Okamura
  • Publication number: 20030046226
    Abstract: A transfer request is initiated by the owner of a target account at a device connected to a target server. The transfer request is transferred via a network to a source server for the source account from which the funds are to be transferred. Information in the transferee-initiated transfer request is then available to the transferor to fully define the transaction.
    Type: Application
    Filed: August 12, 2002
    Publication date: March 6, 2003
    Applicant: International Business Machines Corporation
    Inventors: Toshiyuki Iue, Fuminori Ishikawa
  • Publication number: 20010017312
    Abstract: An upper shearing blade 3 equipped with a protrusion 30 of a triangle-columnar shape and a lower shearing blade 4 equipped with a protrusion 40 of the same shape are applied onto the overlapped portion of metal plates 1 and 2 to be bonded, and then pressed into the metal plates 1 and 2 in an oblique direction inclined with respect to the thickness direction by a stroke in such a range that the metal plates 1 and 2 are not completely cut off. The operating loci of the upper shearing blade 3 and the lower shearing blade 4 are overlapped each other so that one falls inside the other, and the sheared surfaces of the metal plates 1 and 2 are formed into a bonded portion by plastic flow deformation. Therein, since a compressive force is applied onto the portions to be bonded, the portion being defined by the amount of overlap, and the portions are compressed to form a compressed portion after completion of bonding, the bonding strength enhances.
    Type: Application
    Filed: December 14, 2000
    Publication date: August 30, 2001
    Applicant: HITACHI, LTD., POHANG IRON & STEEL CO., LTD.
    Inventors: kenji Horii, Yasutsugu Yoshimura, Tadashi Nishino, Takashi Kamoshita, Takayoshi Tomino, Fuminori Ishikawa, Takao Funamoto, Takashi Mashiko, Kenjiro Narita, Jong-Keun Kim, Ki-Chol Kim, Jong-Sub Lee, Hwang-Kyu Hwang, Jung-Sik Lee, Jin-Hee kim
  • Patent number: 6213381
    Abstract: A bonding apparatus for bonding metal plates, includes an overlapping mechanism for overlapping end portions of the metal plates, at least two supports for supporting the overlapped portion of the metal plates at one side of the metal plates, and a shearing blade disposed opposite the supports so as to sandwich the overlapped portion of the metal plates therebetween, wherein a moving mechanism is provided for relatively moving at least one of the shearing blade and the supports so as to press the shearing blade into the overlapped portion of the metal plates disposed between the supports and the shearing glade. A method for bonding is characterized by bonding metal plates by using the above apparatus.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: April 10, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Takao Funamoto, Gen Nagakubo, Takashi Mashiko, Fuminori Ishikawa, Tadashi Nishino, Yusutsugu Yoshimura, Toshiyuki Kajiwara, Kenichi Yasuda, Mitsuo Nihei, Yoshio Takakura, Hironori Shimogama
  • Patent number: 5938954
    Abstract: A submerged laser beam irradiation equipment provides a high quality submerged laser beam processing of a submerged workpiece using only a small amount of a gas. The submerged laser beam irradiation equipment has: a focus lens for focusing a laser beam; a mirror tube which houses the lens; a first nozzle operating to cover the front end of the mirror tube in an irradiating direction of the laser beam; a skirt portion provided at the front end of the first nozzle for preventing water intrusion thereinto; and a shutter mechanism operable to open and close and provided between said skirt portion and said mirror tube for preventing water intrusion into said mirror tube.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: August 17, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Onuma, Toshimi Matsumoto, Akira Onuma, Mitsuo Nakamura, Choichi Asano, Yasumasa Tamai, Hiroo Koide, Masayuki Kurihara, Takao Funamoto, Fuminori Ishikawa
  • Patent number: 5884832
    Abstract: A bonding apparatus for bonding metal plates, includes an overlapping mechanism for overlapping end portions of the metal plates, at least two supports for supporting the overlapped portion of the metal plates at one side of the metal plates, and a shearing blade disposed opposite the supports so as to sandwich the overlapped portion of the metal plates therebetween, wherein a mechanism is provided for moving relatively moving at least one of the shearing blade and the supports so as to press the shearing blade into the overlapped portion of the metal plates disposed between the supports and the shearing blade. A method for bonding is characterized by bonding metal plates by using the above apparatus.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: March 23, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Takao Funamoto, Gen Nagakubo, Takashi Mashiko, Fuminori Ishikawa, Tadashi Nishino, Yusutsugu Yoshimura, Toshiyuki Kajiwara, Kenichi Yasuda, Mitsuo Nihei, Yoshio Takakura, Hironori Shimogama
  • Patent number: 5773124
    Abstract: This invention relates to the magnetic recording medium, its manufacturing method and the magnetic disk apparatus, in which the ferromagnetic thin film is formed on the substrate board, and the protective layer is provided on that. A Magnetic recording medium of the has at least one layer of the protective layer on the magnetic surface, which is characterized in that the surface of the protective layer is provided with the high noncontinuous large resistance layer, and the density of the surface of the protective layer is higher than other regions other than the said surface.The magnetic recording medium has the surface of the protective layer which contains at least one kind or more of the element of the inert gas element, the halogen element and hydrogen.Therefore, when making a lower flying height of the magnetic head is achieved, the slide durability over the long term is improved, particularly, the slide durability of the magnetic disk apparatus using the MR head can be improved.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: June 30, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Fuminori Ishikawa, Hideaki Tanaka, Toshinori Hirano, Hiroko Saito, Kenichi Gomi, Hiroshi Yashiki, Youichi Inomata, Yoshihiro Moriguchi
  • Patent number: 5252418
    Abstract: An electrophotographic photoreceptor comprising a photoconductive layer comprising a photoconductor, a support for the photoconductive layer and a surface layer formed on the photoconductive layer and comprising a curable resin film and an inorganic insulator pieces having a size larger than the film thickness of the curable resin film. In order to prevent the image blurring of an a-Si:H photoreceptor, on the outermost surface of the photoreceptor was formed a surface layer having a structure in which inorganic insulator pieces have protruded from the curable resin film. Since the curable resin is of high resistance and shows no quality change by corona irradiation, and besides the protruding inorganic insulator pieces prevent the abrasion of the resin, the surface layer having a long life and excellent humidity resistance, durability for corona irradiation and abrasion resistance can be realized.
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: October 12, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Fuminori Ishikawa, Akira Sato, Kunihiro Tamahashi, Masatoshi Wakagi, Katsumi Tamura, Masanobu Hanazono, Mitsuyoshi Shoji, Takayuki Nakakawaji, Yutaka Ito, Shigeki Komatsuzaki, Motoo Akagi, Masaaki Imamura
  • Patent number: 5204202
    Abstract: An electrophotographic photosensitive element, e.g. for a photocopier or laser printer, comprises a substrate and a plurality of layers on the substrate including a photoconductive layer of a-Si:H and a protective and lubricating layer which is outermost from said substrate. To provide wear resistance and long life-time of the protective and lubricating layer, this layer comprises a microporous solid material having a pore structure which extends substantially over the whole thickness of the material and a hydrophobic lubricant carried by said solid material. The lubricant includes a liquid film and often times a non-particulate solid film, and provides at least part of the outer surface of the element and is present also in the pores of said microporous solid material.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: April 20, 1993
    Assignees: Hitachi, Ltd., Hitachi Chemical Co., Ltd.
    Inventors: Fuminori Ishikawa, Kunihiro Tamahashi, Shigeharu Onuma, Masatoshi Wakagi, Masanobu Hanazono, Mitsuyoshi Shoji, Takayuki Nakakawaji, Yutaka Ito, Shigeki Komatsuzaki, Chiaki Yamabishi
  • Patent number: 5073466
    Abstract: An electrophotographic member comprising a support, a photoconductive layer formed thereon, and a surface layer formed thereon, said surface layer including or attaching a lubricating agent having a perfluoropolyoxyalkyl or perfluoropolyoxyalkylene group to form an organic surface protective lubricating layer, and a fixing group to be fixed to the surface layer, is excellent in moisture resistance, wear resistance and cleaning properties and thus useful in an electrophotographic apparatus with a long life and high reliability.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: December 17, 1991
    Assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd.
    Inventors: Fuminori Ishikawa, Kunihiro Tamahashi, Shigeharu Onuma, Masatoshi Wakagi, Masanobu Hanazono, Mitsuyoshi Shoji, Takayuki Nakakawaji, Yutaka Ito, Shigeki Komatsuzaki, Yasuo Shimamura, Chiaki Yamagishi