Patents by Inventor Takashi Isozaki

Takashi Isozaki 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: 20050118403
    Abstract: To provide: an electrical member which can effectively apply characteristics of a carbon nanotube such as an electrode; and an electrical device such as an electrical switch. To provide: an electrical member provided with an electrical contact formed on a base body, in which the electrical contact has a carbon nanotube structure having a network structure constructed by mutually cross-linking functional groups bonded to multiple carbon nanotubes through chemical bonding of the functional groups together; an electrical device employing the electrical member; and a method of manufacturing an electrical member including the steps of: supplying a base body surface with a solution containing multiple carbon nanotubes to which multiple functional groups are bonded; and mutually cross-linking the multiple carbon nanotubes through chemical bonding of the multiple functional groups together to construct a network structure constituting a carbon nanotube structure as an electrical contact.
    Type: Application
    Filed: September 8, 2004
    Publication date: June 2, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazunori Anazawa, Chikara Manabe, Masaki Hirakata, Kentaro Kishi, Taishi Shigematsu, Miho Watanabe, Takashi Isozaki, Hiroyuki Watanabe, Shigeki Ooma, Shinsuke Okada
  • Publication number: 20050090388
    Abstract: Provided are a gas decomposing unit and an electrode for a fuel cell capable of stably supporting a gas decomposing catalyst. A gas decomposing unit and an electrode for a fuel cell each including: a carbon nanotube structure having a mesh structure in which functional groups bonded to plural carbon nanotubes are chemically bonded to mutually cross-link the plural carbon nanotubes; and a gas decomposing catalyst supported on the carbon nanotube structure. A method of manufacturing a gas decomposing unit characterized by including: an applying step of applying, to the surface of a substrate, a solution containing plural carbon nanotubes to which functional groups are bonded; a cross-linking step of chemically bonding the functional groups to build a mesh structure in which the plural carbon nanotubes mutually cross-link; and a supporting step of forming the carbon nanotube structure supporting a gas decomposing catalyst.
    Type: Application
    Filed: June 2, 2004
    Publication date: April 28, 2005
    Applicant: FUJI XEROX CO., LTD
    Inventors: Kentaro Kishi, Kazunori Anazawa, Chikara Manabe, Masaki Hirakata, Taishi Shigematsu, Miho Watanabe, Hiroyuki Watanabe, Takashi Isozaki, Shigeki Ooma, Shinsuke Okada
  • Publication number: 20050087726
    Abstract: Provided are: a composite formed by mixing a carbon nanotube structure and a metal-containing material, the carbon nanotube structure having a network structure constructed by mutually cross-linking functional groups bonded to plural carbon nanotubes through chemical bonding of the functional groups together; and a method of manufacturing the same. The composite of the carbon nanotube and the metal-containing material is capable of effectively using characteristics of the carbon nanotube structure.
    Type: Application
    Filed: August 3, 2004
    Publication date: April 28, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazunori Anazawa, Chikara Manabe, Masaki Hirakata, Kentaro Kishi, Taishi Shigematsu, Miho Watanabe, Takashi Isozaki, Hiroyuki Watanabe, Shigeki Ooma, Shinsuke Okada
  • Publication number: 20050083635
    Abstract: To provide a capacitor capable of utilizing carbon nanotube characteristics effectively to obtain excellent electric or mechanical characteristics, and a method of manufacturing the same. The capacitor is characterized by including two opposing electrodes, at least one of the two electrodes being formed from a coating film of a carbon nanotube structure in which plural carbon nanotubes with functional groups bonded constitute a mesh structure by cross-linking the functional groups through chemical bonding. The method of manufacturing a capacitor includes: a coating step for coating a surface of a base body with a solution that contains plural carbon nanotubes with functional groups bonded; and a cross-linking step for forming a carbon nanotube structure layer in which the functional groups are chemically bonded to one another, thereby causing the carbon nanotubes to cross-link to one another and build a mesh structure.
    Type: Application
    Filed: July 20, 2004
    Publication date: April 21, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigeki Ooma, Hiroyuki Watanabe, Chikara Manabe, Masaki Hirakata, Kentaro Kishi, Taishi Shigematsu, Miho Watanabe, Takashi Isozaki, Shinsuke Okada, Kazunori Anazawa
  • Publication number: 20050069701
    Abstract: Provided are a carbon nanotube structure more excellent in electric conductivity, thermal conductivity, and mechanical strength, and a method of manufacturing the carbon nanotube structure. A carbon nanotube composite structure is characterized by including: a first carbon nanotube structure in which functional groups bonded to plural carbon nanotubes are chemically bonded and mutually cross-linked to construct a network structure; and a second carbon nanotube structure in which functional groups bonded to plural carbon nanotubes are chemically bonded and mutually cross-linked to construct a network structure, the second carbon nanotube structure being combined with the network structure of the first carbon nanotube structure.
    Type: Application
    Filed: February 5, 2004
    Publication date: March 31, 2005
    Applicant: FUJI XEROX CO., LTD
    Inventors: Miho Watanabe, Chikara Manabe, Taishi Shigematsu, Kazunori Anazawa, Takashi Isozaki, Kentaro Kishi, Masaki Hirakata, Shigeki Ooma, Shinsuke Okada, Hiroyuki Watanabe
  • Publication number: 20050064647
    Abstract: To provide a wire excellent in electrical characteristics or in mechanical characteristics. A wire is constructed at least by a carbon nanotube structure layer (1) in which plural carbon nanotubes mutually cross-link to configure a mesh structure on the surface of a substrate (2). A method of manufacturing the wire includes: an applying step of applying to the surface of the substrate (2) a liquid solution containing a carbon nanotube having a functional group; and a step of curing the liquid solution after the application. An electromagnet scarcely causing a loss is formed using the wire.
    Type: Application
    Filed: January 30, 2004
    Publication date: March 24, 2005
    Applicant: FUJI XEROX CO., LTD
    Inventors: Chikara Manabe, Kazunori Anazawa, Masaki Hirakata, Kentaro Kishi, Taishi Shigematsu, Miho Watanabe, Takashi Isozaki, Hiroyuki Watanabe, Shigeki Ooma, Shinsuke Okada
  • Publication number: 20050040371
    Abstract: To provide a resistance element having an electric resistance body with excellent stability and a method of manufacturing the same. The resistance element includes an electric resistance body, on a base body surface, consisting of a carbon nanotube structure layer 14, which configures a mesh structure in which at least plural carbon nanotubes are cross-linked to one another. The method of manufacturing the resistance element includes: an applying step of applying the base body surface 12 with a liquid solution containing carbon nanotubes having functional groups; and a cross-linking step of forming the carbon nanotube structure layer 14, used as an electric resistance body, that configures a mesh structure in which the plural carbon nanotubes are cross-linked to one another through curing of the liquid solution after application.
    Type: Application
    Filed: January 29, 2004
    Publication date: February 24, 2005
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Miho Watanabe, Masaki Hirakata, Kazunori Anazawa, Chikara Manabe, Kentaro Kishi, Taishi Shigematsu, Takashi Isozaki, Hiroyuki Watanabe, Shigeki Ooma, Shinsuke Okada
  • Publication number: 20010032555
    Abstract: A stencil printing apparatus prevented from being irregular in printing density between the central portion and the marginal portions of the printing area of a printing drum is provided. The stencil printing apparatus comprises a cylindrical printing drum having an ink-passable circumferential wall, an inner roller disposed inside the printing drum for supplying ink to an inner circumferential surface of the circumferential wall, and an outer roller disposed outside the printing drum in opposite to the inner roller. The inner roller is disposed at a gap of 0.9 mm or less, preferably 0.3 mm or less from the inner circumferential surface of the circumferential wall, and the outer roller is larger in diameter than the inner roller.
    Type: Application
    Filed: March 19, 2001
    Publication date: October 25, 2001
    Inventors: Takashi Isozaki, Hirohide Hashimoto
  • Patent number: 6199479
    Abstract: By preventing a deformation of printing drum of a rotary stencil printing apparatus caused at the time of printing, uniform printed images can be printed even under conditions such as low temperature and high-speed printing and even using an apparatus provided with a large-sized drum. That is, the invention provides a method for stencil printing which comprises winding a perforated stencil sheet around the peripheral wall of a cylindrical printing drum having an ink permeable peripheral wall and rotating around its central axis, supplying an ink to the peripheral wall from the inside of the drum at the time of rotation of the drum, and pressing a printing paper to the outer surface of the peripheral wall of the drum to transfer the ink to the printing paper through the stencil sheet, wherein the peripheral wall of the drum has such a strength that the peripheral wall shows a stress of 0.75 kgf/cm2 or more, preferably 1.4 kgf/cm2 or more when it is deformed by 0.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: March 13, 2001
    Assignee: Riso Kagaku Corporation
    Inventors: Takashi Isozaki, Hiroyasu Kato, Kenji Suzuki, Sadanao Okuda
  • Patent number: 5845570
    Abstract: A print image treatment device is formed of a supply device for holding an excess ink removing liquid, the excessive ink removing liquid not dissolving in a printing ink forming a print image and having a lower surface tension than that of the printing ink; a rotating contact member having an outer surface, on which the excessive ink removing liquid is supplied from the supply device; a facing member situated under the contact member for nipping and carrying a printing sheet between the contact member and the facing member, an excessive printing ink forming the print image on a printing sheet being transferred to the excessive printing ink removing liquid when the printing sheet contacts the contacting member; a cleaning device contacting the contact member for removing the excessive printing ink with the excessive ink removing liquid; and a separation device receiving the excessive ink removing liquid with the excessive printing ink.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: December 8, 1998
    Assignee: Riso Kagaku Corporation
    Inventors: Takashi Isozaki, Ryuji Higa, Takahito Tojima, Sadanao Okuda
  • Patent number: 5813341
    Abstract: A print image treatment device is formed of a contact member which is coated on the peripheral surface with an excessive ink removing liquid incompatible with printing ink for forming a print image and having a lower surface tension than the printing ink, and is rotated in a specific direction, a facing member which serves to bring the printed side of a printed paper into contact with the excessive ink removing liquid by feeding the printed paper nipped between the contact member and the facing member, a supply means for supplying the excessive ink removing liquid to the peripheral surface of the contact member, and a cleaning means which contacts the peripheral surface of the contact member. The angle of the cleaning means from the tangent line of the peripheral surface is within a range of 5 to 60 degrees.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: September 29, 1998
    Assignee: Riso Kagaku Corporation
    Inventors: Takahito Tojima, Ryuji Higa, Takashi Isozaki, Sadanao Okuda
  • Patent number: 5724888
    Abstract: A printed image after-processing apparatus includes a rotatable contact member coated with an excess ink removing liquid incompatible with a printing ink forming a printed image on a printing sheet and having a surface tension lower than that of the printing ink; a counter member having a surface roughness of 0.5 .mu.m or less, for feeding the printing sheet after printed between the counter member and the contact member to thereby make a printed surface of the printing sheet into contact with the contact member; a supplying device for supplying the excess ink removing liquid to the contact member; and a cleaning device contacting with the contact member.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: March 10, 1998
    Assignee: Riso Kagaku Corporation
    Inventors: Sadanao Okuda, Takahito Tojima, Takashi Isozaki
  • Patent number: 5694840
    Abstract: A printed image after-processing apparatus is formed of a contact member which is coated with an excess ink removing solution which is incompatible with the printing ink forming a printed image and has a lower surface tension than the printing ink, and driven to rotate the contact member having coefficient of dynamic friction with 1.5 or less; a counter member holding to convey printed paper between it and the contact member, to thereby bring the printed surface of the printed paper into contact with the excess ink removing solution on the contact surface: a supplying device for supplying the excess ink removing solution to the contact member; and a cleaning device which contacts the contact member.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: December 9, 1997
    Assignee: Riso Kagaku Corporation
    Inventors: Takashi Isozaki, Sadanao Okuda, Takahito Tojima
  • Patent number: 5671675
    Abstract: The print image device according to this invention is comprised of a rotatable member with an excessive ink removing liquid applied to the surface, which does not dissolve in a printing ink forming a print image and has a lower surface tension than that of the printing ink; a facing member for bringing a printed surface of a printed body into contact with the excessive ink removing liquid on the contact member by nipping and carrying the printed body having been printed between the contact member and the facing member; a supply device for supplying the excessive ink removing liquid to the contact member; and a cleaning device for removing the excessive ink removing liquid with the printing ink, sliding in contact with the contact member. Furthermore, a mixture of the excessive ink removing liquid and the printing ink is formed at an upstream position in the rotating direction, i.e.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: September 30, 1997
    Assignee: Riso Kagaku Corporation
    Inventors: Sadanao Okuda, Takashi Isozaki, Ryuji Higa, Takahito Tojima
  • Patent number: 5642672
    Abstract: Disclosed is the print image treatment device formed of: a contact member on a surface of which an excessive ink removing liquid not dissolving in a printing ink forming a print image and having a lower surface tension than that of the printing ink is applied, the contact member being driven to rotate; a facing member for bringing a printed surface of a printing body into contact with the excessive ink removing liquid on the contact member by nipping and carrying the printing body having been printed between the contact member and the facing member; a supply device for supplying the excessive ink removing liquid to the contact member; and a cleaning device for removing an excessive ink with the excessive ink removing liquid. The nip width formed by the contact member and the facing member, which is defined as the dimension of the part with which the contact member and the facing member are in contact in the direction of the printing body being carried, is specified to be 0.5 mm or over.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: July 1, 1997
    Assignee: Riso Kagaku Corporation
    Inventors: Takashi Isozaki, Takahito Tojima, Ryuji Higa, Sadanao Okuda
  • Patent number: 5476043
    Abstract: The occurrence of offsetting and strike-through in a stencil printing device is prevented without creating any new problems, and the printing paper is allowed to be conveyed with a pair of rollers interposing the printing paper for a reliable paper ejection process. Printing paper P is passed through a nip between a contact roller 37 and a counter roller 39 opposing the contact roller 37, the outer circumferential surface of the contact roller being coated with a layer of excess ink removing liquid which does not dissolve with the printing ink forming the printed image and has smaller surface tension than the printing ink, and the contact between the excess ink removing liquid layer a of the contact roller 37 and the printed surface of the printing paper P causes the excess portion of the printing ink b deposited on the printed image of the printing paper to be transferred onto the excess ink removing liquid layer a so as to remove the excess ink from the printing paper P.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: December 19, 1995
    Assignee: Riso Kagaku Corporation
    Inventors: Sadanao Okuda, Takahito Tojima, Takashi Isozaki
  • Patent number: 5243293
    Abstract: A system for detecting a fault occurred within a substation and judging a location of the fault including optical current sensors each having a Faraday element arranged on a top of an insulator post of a bus disconnecting switch, a magnetic core arranged to surround a terminal plate of the disconnecting switch to generate a magnetic field corresponding to a current passing through the terminal plate, a laser diode for emitting a laser light beam, an optical fiber for guiding the laser beam to the Faraday element, a photodiode, and an optical fiber for guiding the laser beam transmitted through the Faraday element to the photodiode. The photodiode supplies a signal representing the current passing through the terminal plate to a fault location judging circuit in which the fault location within the substation is judged from the signals from the photodiodes.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: September 7, 1993
    Assignee: NGK Insulators, Ltd.
    Inventors: Takashi Isozaki, Katsuro Shinoda, Toshiyuki Kawaguchi, Hiroyuki Katsukawa, Kazumi Nakanishi, Hiroyuki Abe, Yasuhisa Sakurai
  • Patent number: 4709330
    Abstract: A system for supervising and guiding workers at various places in a construction such as an underground substation, underground market, building, or tunnel is disclosed which includes a number of receivers arranged in a number of sections of the construction for receiving infrared radiation emitted from workers to produce a detection signal, a detection device arranged in a central control room for processing the detection signals supplied from the receivers to detect positions of workers in the construction, and communication devices provided in each section and the central control room for providing the workers with various kinds of instructions, commands and messages for preventing a disaster and escaping an emergency.
    Type: Grant
    Filed: October 4, 1984
    Date of Patent: November 24, 1987
    Assignee: NGK Insulators Ltd.
    Inventors: Shigeo Yokoi, Takashi Isozaki, Ryuta Yamamoto, Toshiyuki Kawaguchi