Patents by Inventor Kenji Sano

Kenji Sano 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: 7384995
    Abstract: The present invention relates to a thiol compound derivative represented by the following formula (1), a curable composition containing the derivative, and a molded product made of the composition. More particularly, the invention relates to a thiol compound derivative which is added to a polymer having reactivity to a thiol derivative substituent to provide a curable composition, a curable composition containing the derivative and a crosslinkable halogen-containing crosslinking polymer, and a crosslinked molded product of the composition.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: June 10, 2008
    Assignee: Unimatec Co., Ltd.
    Inventors: Kiyoshi Endo, Kenji Sano
  • Patent number: 7378373
    Abstract: An erasable image forming material includes a color former, a developer, a binder resin and 0.5 wt % or less of a plasticizer. The erasable image forming material exhibits improved erasure performance.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: May 27, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Gotanda, Satoshi Takayama, Kenji Sano, Yumiko Sekiguchi
  • Patent number: 7354885
    Abstract: An erasable image forming material includes a color former containing crystal violet lactone, a developer, a first binder resin of styrene-butadiene copolymer and a second binder resin of a styrene-based resin containing a-methylstyrene, the first and second binder resins being in a compatible state.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: April 8, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda, Yumiko Sekiguchi
  • Publication number: 20080070781
    Abstract: An erasable image forming material is provided, which includes a binder resin, and a color former and a developer dispersed in the binder resin. The color former is amorphous.
    Type: Application
    Filed: July 19, 2007
    Publication date: March 20, 2008
    Inventors: Takeshi Gotanda, Satoshi Takayama, Kenji Sano, Yumiko Sekiguchi, Shinya Sakurada
  • Publication number: 20070230289
    Abstract: A data recording/reproducing apparatus includes a first power source unit which generates necessary electric power signals from a commercial power source, and a second power source unit which generates a necessary electric power signal from the commercial power source. When a user issues an instruction to interrupt the operation of the power source of the apparatus, the generation of the electric power signal of the first power source unit is stopped, and the electric power is supplied to at least two of a control unit for controlling switching of operation states of the apparatus, a reception unit for receiving a manipulation instruction, and a display unit for displaying thereon data relating to the operation state from the second power source unit.
    Type: Application
    Filed: May 30, 2007
    Publication date: October 4, 2007
    Inventors: Kouji MINABE, Yukio Nakamura, Shoji Ohno, Ko Kumagai, Kenji Sano
  • Patent number: 7276465
    Abstract: An erasable image forming material includes a color former, a developer, and a binder resin, the color former containing Crystal Violet Lactone and a specific fluorane compound can enhance light fastness as well as heat decolorizing performance.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: October 2, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda
  • Patent number: 7270877
    Abstract: A protective tape used for optical member comprising a plastic film base, a pressure-sensitive adhesive layer formed on one side of the plastic film base and a treated layer formed on an opposite side of the plastic film base, wherein the treated layer has a structure in which a copolymer (A) including (a) an alkyl (meth)acrylate having an alkyl group with carbon numbers of 8 to 20; (b) (meth)acrylonitrile; and (c) a monomer having functional groups copolymerizable with the component (a) and the component (b), as copolymerization components, is cross-linked by a cross-linking agent. The protective tape used for optical member is enabled to direct print with an ink on the treated layer and have a low adhesive property with the pressure-sensitive adhesive applied to an optical film and have a solvent resistance.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: September 18, 2007
    Assignee: Nitto Denko Corporation
    Inventors: Takuya Niino, Shozo Imono, Kazuhito Okumura, Kenji Sano
  • Publication number: 20070155868
    Abstract: The present invention relates to a thiol compound derivative represented by the following formula (1), a curable composition containing the derivative, and a molded product made of the composition. More particularly, the invention relates to a thiol compound derivative which is added to a polymer having reactivity to a thiol derivative substituent to provide a curable composition, a curable composition containing the derivative and a crosslinkable halogen-containing crosslinking polymer, and a crosslinked molded product of the composition. wherein X1, X2 and X3 are each a group represented by the following formula (2).
    Type: Application
    Filed: February 28, 2007
    Publication date: July 5, 2007
    Inventors: Kiyoshi Endo, Kenji Sano
  • Patent number: 7227825
    Abstract: A signal recording/reproducing apparatus includes a first power source unit which generates necessary electric power signals from a commercial power source, a second power source unit which generates a necessary electric power signal from a battery, a recording signal processing unit, and a reproduced signal processing unit. The apparatus further includes time measuring instrument which is supplied with the electric power from the second power source unit, and a charging unit which charges the battery with the electric charges. Whenever the time measuring instrument measures a predetermined time, the generation of the electric power signals from the first power source unit is started, and the battery is charged with the electric charges by the charging unit.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: June 5, 2007
    Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.
    Inventors: Kouji Minabe, Yukio Nakamura, Shoji Ohno, Ko Kumagai, Kenji Sano
  • Patent number: 7208449
    Abstract: A decolorable image forming material contains a color former and a developer, that develop a colored state through interaction therebetween and can be decolored by heating or contact with a solvent, in which the developer contains two or more compounds whose deference in molecular weight is 15 or more.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: April 24, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Sano, Satoshi Takayama, Masanori Ogiue
  • Patent number: 7199169
    Abstract: The present invention relates to a thiol compound derivative represented by the following formula (1), a curable composition containing the derivative, and a molded product made of the composition.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: April 3, 2007
    Assignee: Unimatec Co., Ltd.
    Inventors: Kiyoshi Endo, Kenji Sano
  • Publication number: 20070072773
    Abstract: An erasable image forming material includes a color former containing crystal violet lactone, a developer, a first binder resin of styrene-butadiene copolymer and a second binder resin of a styrene-based resin containing a-methylstyrene, the first and second binder resins being in a compatible state.
    Type: Application
    Filed: September 18, 2006
    Publication date: March 29, 2007
    Inventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda, Yumiko Sekiguchi
  • Publication number: 20070072771
    Abstract: An erasable image forming material includes a color former, a developer, a binder resin and 0.5 wt % or less of a plasticizer. The erasable image forming material exhibits improved erasure performance.
    Type: Application
    Filed: September 18, 2006
    Publication date: March 29, 2007
    Inventors: Takeshi Gotanda, Satoshi Takayama, Kenji Sano, Yumiko Sekiguchi
  • Publication number: 20070043819
    Abstract: A mail server and mail terminals are connected through a radio communication network. The mail server makes viral infection decision of if e-mails are infected with computer virus without burdening the mail terminals having poor processing power. The mail terminals are constructed to serve as small-sized mail terminals. When an e-mail arrives at the mail server through the Internet, the mail server decides if the e-mail is infected with virus. The result of the viral infection decision is added as the whole or a part of inspection information within the header of the e-mail. The corresponding mail terminal can detect presence or absence of viral infection on the basis of the inspection information. When the e-mail is infected with virus, the mail terminal can inform a user of the contaminated e-mail by making tone of a buzzer or vibrator different from a normal e-mail.
    Type: Application
    Filed: October 30, 2006
    Publication date: February 22, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Makoto Katagishi, Kenji Sano, Osamu Hasegawa
  • Publication number: 20060111237
    Abstract: An erasable image forming material includes a color former, a developer, and a binder resin, the color former containing Crystal Violet Lactone and a specific fluorane compound can enhance light fastness as well as heat decolorizing performance.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 25, 2006
    Inventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda
  • Publication number: 20050221206
    Abstract: The present invention relates to a decolorable image forming material having a color former, a developer, a binder resin and a surfactant. The present invention also relates to a decolorable image forming material having a powder including a color former, a developer and a binder resin, and a surfactant externally added to the powder.
    Type: Application
    Filed: March 24, 2005
    Publication date: October 6, 2005
    Inventors: Satoshi Takayama, Kenji Sano
  • Publication number: 20050191082
    Abstract: An image decolorizing apparatus decolorizing an image formed on a printed medium using a decolorable image forming material containing a color former, a developer, and a binder resin, has a scratching mechanism scratching the printed medium at a temperature lower than a softening temperature of the binder resin, and a heater heating a scratched surface of the printed medium to a temperature higher than the softening temperature of the binder resin.
    Type: Application
    Filed: February 3, 2005
    Publication date: September 1, 2005
    Inventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda
  • Publication number: 20050159311
    Abstract: A decolorable image forming material contains a color former and a developer, that develop a colored state through interaction therebetween and can be decolored by heating or contact with a solvent, in which the developer contains two or more compounds whose deference in molecular weight is 15 or more.
    Type: Application
    Filed: January 19, 2005
    Publication date: July 21, 2005
    Inventors: Kenji Sano, Satoshi Takayama, Masanori Ogiue
  • Patent number: 6920382
    Abstract: The present invention provides a system for performing procedures to request repair, without troubling the driver, when a car breaks down, as well as various onboard peripheral apparatuses and cellular phone used for this system. This system comprises an onboard peripheral apparatus having a failure detector, an onboard main controller for managing car information, a cellular phone which can make wireless connection to the onboard main controller, and a response center for receiving requests for car repairs and maintenance and making arrangements therefor. When a failure is detected, repair request is transmitted to the response center through wireless communication together with the user ID of the driver. Based on this request, the response center acquires remedy information from a car manufacturer and makes arrangements for repair and provides this remedy information to a repair shop.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: July 19, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Katagishi, Yoshiro Mikami, Teruo Fujii, Kenji Sano
  • Patent number: 6857573
    Abstract: An article including a substrate and an invisible symbol on the substrate is disclosed. The invisible symbol is formed by a compound which includes a cyano group and has an infrared absorption wavelength apart from that of the substrate when heated.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: February 22, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Taeko I. Urano, Kenji Sano, Hideo Nagai, Tomokazu Domon, Hironori Fukuda