Patents by Inventor Takashi Date

Takashi Date 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: 20070173407
    Abstract: The present invention relates to a developer mixture for a thermal recording material, which comprises a mixture of the first organic developer comprising a condensate or a condensed composition represented by the formula (I): wherein R is a lower alkyl group or an aralkyl group, n is an integer of 0 to 5, and X and Y are each a hydrogen atom, an alkyl group or an aryl group, and the second organic developer other than the first organic developer (except 2,2-bis(3-methyl-4-hydroxyphenyl)propane), a developer mixture for a thermal recording material, and a thermal recording material having a heat-coloring layer containing the developer mixture. Using the developer mixture for a thermal recording material of the present invention, a thermal recording material sufficiently satisfying the recent requirement for high sensitivity, and having superior preservation stability of color images and non-image areas can be realized.
    Type: Application
    Filed: March 11, 2005
    Publication date: July 26, 2007
    Applicants: API CORPORATION, NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Mamoru Suga, Nanako Okamoto, Aya Kato, Takashi Date, Yoshihide Kimura
  • Publication number: 20070099798
    Abstract: The present invention provides a laser recording thermally sensitive recording medium comprising a thermally sensitive recording layer containing at least a photo absorbing material which absorbs laser ray and covert it to heat, an electron donning leuco dye and an electron accepting color developing agent on a substrate, wherein said electron donning leuco dye contains a leuco dye which absorbs the ray of visible range and a leuco dye having main wave length of absorption at the ray of 600 nm or longer.
    Type: Application
    Filed: November 2, 2006
    Publication date: May 3, 2007
    Inventors: Tomoaki Nagai, Takashi Date, Yuji Tsuzuki, Yoshihide Kimura
  • Publication number: 20060191433
    Abstract: The present invention is a thermally sensitive recording medium comprising a thermally sensitive color developing layer containing colorless or pale colored basic leuco dye and a color developing agent as main components on a substrate, wherein said thermally sensitive recording layer is comprising an acrylic polymer obtained by copolymerization of alkyl acrylate, alkyl methacrylate and vinylsilane as monomer components and a colloidal silica, further, the present invention is a thermally sensitive recording medium, wherein said colloidal silica is possessing chain structure.
    Type: Application
    Filed: March 31, 2004
    Publication date: August 31, 2006
    Inventors: Takashi Date, Junpei Natsui, Yoshimi Midorikawa, Tatsuo Nagai, Yoshihide Kimura
  • Publication number: 20060125909
    Abstract: A thermally sensitive recording medium including on a support a thermally sensitive color development layer containing: a compound represented by the following general formula (1) as an organic color developing agent; and an oxalate compound represented by the following general formula (2) as a sensitizer. (In the formula (1): M represents CO or NRCO; when M is CO, m1 is 1; and when m1 is 0 and M is NRCO, B is not 0.
    Type: Application
    Filed: October 24, 2003
    Publication date: June 15, 2006
    Inventors: Kaoru Hamada, Kenji Hirai, Takanori Otsuhata, Takashi Date, Junpei Natsui, Yoshihide Kimura, Aya Katoh
  • Publication number: 20060007765
    Abstract: A thermally sensitive recording medium comprising, a thermally sensitive recording medium providing an undercoating layer containing a pigment and a binder as main components and a thermally sensitive recording layer containing a colorless or pale colored basic leuco dye and a color developing agent, which reacts with said basic leuco dye, as main components on a substrate, wherein said undercoating layer contains carboxymethyl cellulose whose etherification degree is from 0.55 to 0.75. Causing the undercoating layer to further contain hydroxyethyl cellulose from the view point of high effectiveness.
    Type: Application
    Filed: August 28, 2003
    Publication date: January 12, 2006
    Inventors: Masayuki Watanabe, Kaoru Hamada, Junpei Natsui, Yuji Tsuzuki, Takashi Date
  • Publication number: 20050264644
    Abstract: Provided is a thermally sensitive recording medium which exhibits high recording sensitivity, high heat resistance of ground color part and excellent preserving stability of images. A thermally sensitive recording medium, comprising a thermally sensitive recording layer containing a colorless or pale colored basic colorless dye and an organic color developing agent as main components on a substrate, wherein said thermally sensitive recording layer contains at least one compound represented by general formula (1) and contains at least one compound selected from the group consisting of 3-{[(phenylamino)carbonyl]amino}benzensulfoneamide represented by formula (2), an ureaurethane compound represented by formula (3) and a copolymer of glysidilmethacrylate and vinyl monomer (average molecular weight is 9000-11000, epoxy equivalent is 300-600 and melting point is 110° C. or less) as a stabilizer.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 1, 2005
    Inventors: Junpei Natsui, Yuji Tsuzuki, Kaoru Hamada, Takashi Date
  • Publication number: 20040241598
    Abstract: The developer for a thermal recording material of the present invention comprises a condensed composition consisting of, of condensates represented by the formula (1): 1
    Type: Application
    Filed: March 26, 2004
    Publication date: December 2, 2004
    Inventors: Mamoru Suga, Kaori Suzuki, Takashi Omori, Takashi Date
  • Patent number: 6798485
    Abstract: The present invention has an object to provide a liquid crystal display device which, when a liquid crystal injection portion is sealed and stopped up with a resin, makes it possible to precisely and easily perform the operation and makes it possible to detect defective liquid crystal injection.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: September 28, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takashi Date, Toshiaki Hoshino
  • Publication number: 20040171485
    Abstract: The present invention provides a laser recording thermally sensitive recording medium comprising a thermally sensitive recording layer containing at least a photo absorbing material which absorbs laser ray and covert it to heat, an electron donning leuco dye and an electron accepting color developing agent on a substrate, wherein said electron donning leuco dye contains a leuco dye which absorbs the ray of visible range and a leuco dye having main wave length of absorption at the ray of 600 nm or longer.
    Type: Application
    Filed: November 12, 2003
    Publication date: September 2, 2004
    Inventors: Tomoaki Nagai, Takashi Date, Yuji Tsuzuki, Yoshihide Kimura
  • Publication number: 20030164907
    Abstract: The present invention has an object to provide a liquid crystal display device which, when a liquid crystal injection portion is sealed and stopped up with a resin, makes it possible to precisely and easily perform the operation and makes it possible to detect defective liquid crystal injection.
    Type: Application
    Filed: June 16, 1999
    Publication date: September 4, 2003
    Inventors: TAKASHI DATE, TOSHIAKI HOSHINO
  • Patent number: 6440897
    Abstract: The present invention is a thermally sensitive recording medium which has excellent anti ultra violet ray property, mainly composed of an electron donating compound and an electron accepting compound, containing at least one of benzoxadinone compound represented by general formula (1) as an ultra violet ray absorbing agent. In the above mentioned formula, R represents hydrogen atom, hydroxyl group, alkyl group of carbon number 1-8, alkoxy group of carbon number 1-6, acyl group of carbon number 1-6, acyloxy group of carbon number 1-6, alkoxy carbonyl group of carbon number 1-6, carboxyl group, halogen atom or nitro group and X represents a divalent group or a direct bond.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: August 27, 2002
    Assignee: Nippon Paper Industries Co Ltd
    Inventors: Yukiko Ryu, Takashi Date, Reiji Ohashi
  • Patent number: 6229586
    Abstract: The present invention provides a reflection type liquid display device that does not cause defects such as a short circuit between a metallic reflection film and an electrode layer that are laminated on the substrate, a break in the electrode layer, and that can be easily manufactured because the alignment of elements is easily conducted.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: May 8, 2001
    Assignee: Alp Electric Co., Ltd.
    Inventors: Takashi Date, Kenji Omote
  • Patent number: 5835178
    Abstract: A liquid crystal display device of the present invention comprises a first substrate and a second substrate, each of which has a glass substrate, an electrode portion formed on the glass substrate, and an orientation film formed on the electrode portion. The first substrate and the second substrate are opposed to each other and have a liquid crystal layer encapsuled therebetween. The electrode portion includes: a display-portion electrode group formed within a display-screen region; an extraction electrode group leading the display-portion electrode group outward from at least one side of the display-screen region; and an external electrode group formed outside the display-screen region. The periphery of the external electrode group, positioned on an external area of a side on which the extraction electrode group in the display-screen region is not formed, is covered with the orientation film.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: November 10, 1998
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takehiko Sone, Takashi Date, Manabu Kusano
  • Patent number: 5825450
    Abstract: A liquid crystal display device includes a display pattern portion including a plurality of transparent electrodes extending mutually in parallel, a terminal portion including a plurality of lead patterns extending mutually in parallel with a pattern pitch narrower than that among the transparent electrodes, and connection patterns for connecting the transparent electrodes and the lead patterns. The connection patterns consist of first connection patterns leading obliquely from the transparent electrodes to extend mutually in parallel and having a common pattern width, and second connection patterns leading straight from the lead patterns to connect with the first connection patterns at a predetermined angle and having a common pattern width.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: October 20, 1998
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takashi Date, Manabu Kusano
  • Patent number: 5555116
    Abstract: Disclosed herein is a liquid crystal display which can eliminate the nonuniformity of display contrast due to a difference in wiring resistance between electrode terminals of a liquid crystal panel. Two adjacent ones of the electrode terminals which are respectively connected to two adjacent ones of tape carriers are set substantially equal in length. Furthermore, two adjacent ones of the electrode terminals which are respectively connected to two of lead wires adjacent to each other with a lead pitch increased area interposed therebetween are set substantially equal in length.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: September 10, 1996
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takehiro Ishikawa, Takashi Date, Fumihiko Sagawa
  • Patent number: 5233012
    Abstract: Novel condensates comprising bisphenols and aromatic aminosulfonic acids, in particular, novel 4-aminobenzenesulfonic acid-2,2-bis (hydroxyphenyl)propaneformaldehyde condensates, and methods for their production are disclosed. The novel condensates are useful as a dispersant for disperse dyes, an additive for carbonaceous fine powder-water slurries and as a water reducing agent for cement.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: August 3, 1993
    Assignee: Sanyo-Kokusaku Pulp Co., Ltd.
    Inventors: Masanobu Kawamura, Shinji Hamada, Takashi Date, Toshihiro Sugiwaki, Nobuhiro Hanada
  • Patent number: 5153299
    Abstract: A production method of novel condensates comprising bisphenols and aromatic aminosulfonic acids, in particular, novel 4-aminobenzenesulfonic acid-2, 2-bis(4-hydrocyphenyl)propaneformaldehyde type condensate and said condensate itself are disclosed. Uses of condensates as a dispersant for disperse dye, additive for carbonaceous fine powder-water slurry and water-reducing agent for cement are also claimed.
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: October 6, 1992
    Assignee: Sanyo-Kokusaku Pulp Co., Ltd.
    Inventors: Masanobu Kawamura, Shinji Hamada, Takashi Date, Toshihiro Sugiwaki, Nobuhiro Hanada