Patents by Inventor Kouhei Fujita

Kouhei Fujita 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: 10336708
    Abstract: A novel imidazole compound that yields a surface treatment liquid that is very effective at suppressing migration and oxidation of a wiring surface; a metal surface treatment liquid that contains the imidazole compound; a metal surface treatment method that uses the metal surface treatment liquid; and a laminate production method that uses the surface treatment liquid. A metal is surface-treated using the surface treatment liquid which includes a saturated fatty acid or a saturated fatty acid ester of a specific structure, in which a prescribed position is substituted by an aromatic group of a prescribed structure and an imidazolyl group that may have a substituent group.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: July 2, 2019
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Tatsuro Ishikawa, Kunihiro Noda, Yasuhide Ohuchi, Hiroki Chisaka, Dai Shiota, Yukitsugu Maeda, Takafumi Imoto, Kouhei Fujita, Yasuyuki Akai
  • Publication number: 20170247334
    Abstract: A novel imidazole compound that yields a surface treatment liquid that is very effective at suppressing migration and oxidation of a wiring surface; a metal surface treatment liquid that contains the imidazole compound; a metal surface treatment method that uses the metal surface treatment liquid; and a laminate production method that uses the surface treatment liquid. A metal is surface-treated using the surface treatment liquid which includes a saturated fatty acid or a saturated fatty acid ester of a specific structure, in which a prescribed position is substituted by an aromatic group of a prescribed structure and an imidazolyl group that may have a substituent group.
    Type: Application
    Filed: August 27, 2015
    Publication date: August 31, 2017
    Inventors: Tatsuro ISHIKAWA, Kunihiro NODA, Yasuhide OHUCHI, Hiroki CHISAKA, Dai SHIOTA, Yukitsugu MAEDA, Takafumi IMOTO, Kouhei FUJITA, Yasuyuki AKAI
  • Patent number: 9206138
    Abstract: Provided is a high-purity crystal of an unsaturated carboxylic acid amide compound which is useful as or for fine chemicals such as pharmaceuticals, agricultural chemicals, polymeric materials, functional materials, and intermediates of them. The crystal includes an unsaturated carboxylic acid amide compound represented by Formula (1) in an amount of 95 percent by area or more. In X-ray diffraction, the crystal exhibits peaks at 2? in the range of 29.0 to 30.0 and in at least one range selected from 6.0 to 8.0, 12.0 to 13.5, and 16.5 to 17.5 and exhibits approximately no peak at 2? in the range of 14.0 to 15.0.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: December 8, 2015
    Assignee: Daicel Corporation
    Inventors: Yukitsugu Maeda, Takafumi Imoto, Yasuyuki Akai, Kouhei Fujita, Shinya Sahara
  • Publication number: 20150299135
    Abstract: Provided is a high-purity crystal of an unsaturated carboxylic acid amide compound which is useful as or for fine chemicals such as pharmaceuticals, agricultural chemicals, polymeric materials, functional materials, and intermediates of them. The crystal includes an unsaturated carboxylic acid amide compound represented by Formula (1) in an amount of 95 percent by area or more. In X-ray diffraction, the crystal exhibits peaks at 2? in the range of 29.0 to 30.0 and in at least one range selected from 6.0 to 8.0, 12.0 to 13.5, and 16.5 to 17.5 and exhibits approximately no peak at 2? in the range of 14.0 to 15.0.
    Type: Application
    Filed: August 5, 2013
    Publication date: October 22, 2015
    Applicant: DAICEL CORPORATION
    Inventors: Yukitsugu MAEDA, Takafumi IMOTO, Yasuyuki AKAI, Kouhei FUJITA, Shinya SAHARA
  • Publication number: 20150158820
    Abstract: Provided is a crystal of an unsaturated carboxylic acid amide. The crystal is useful as or for fine chemicals such as pharmaceuticals, agricultural chemicals, polymeric materials, functional materials, and intermediates of them, has a high purity, still is not bulky, and can be handled excellently. The crystal includes an unsaturated carboxylic acid amide represented by Formula (1) in an amount of 95 percent by area or more and has a bulk density of 0.2 to 0.7 g/mL. In the formula, R1 to R5 are independently selected from hydrogen, alkyl, hydroxyl, alkoxy, and nitro. At least two of R1 to R5 may be linked to form a ring together with carbon atoms constituting the specified aromatic ring. R6, R7, and R8 are independently selected from hydrogen, alkyl, and aryl. R7 and R8 may be linked to form a ring together with carbon atoms constituting the specified imidazole ring.
    Type: Application
    Filed: August 5, 2013
    Publication date: June 11, 2015
    Applicant: DAICEL CORPORATION
    Inventor: Kouhei Fujita
  • Patent number: 7066289
    Abstract: Mud and sand are prevented from entering between support-receiving members since both ends of the roller shaft are constructed so as to be held at both sides thereof when providing the upper roller on the travelling body frame secured in a civil engineering apparatus. The first and second support receiving members 19, 20 are constructed so that the members respectively support both end portions of the roller shaft 17a of the upper roller 17 on the upper part of the track frame 11 and cross frame 12 on the travelling body frame 10 secured at the lower part of the civil engineering apparatus, wherein the roller supporting portions 19a, 20b and a pair of coupling pieces 19a, 20a for coupling the roller supporting portions 19b, 20b to the travelling body frame 10 are formed to be substantially reverse U-shaped.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: June 27, 2006
    Assignee: Shin Caterpillar Mitsubishi Ltd.
    Inventors: Kouhei Fujita, Shigeyoshi Adachi, Jyouji Okamoto, Yuuichi Suehiro
  • Publication number: 20050173095
    Abstract: The air conditioner capacitor is arranged at the front side of the oil cooler or the radiator against the flow of the cooling air, thereby carrying out maintenance of the oil cooler and/or the radiator at the rear side without removing the air conditioner capacitor arranged at the front side, thus improving maintenance. The turbocharger cooler 11 is structured to change the postures so as to swing up and down between the cooling posture in which the turbocharger cooler 11 is arranged in parallel with the radiator 8 and an open posture in which the turbocharger cooler 11 is arranged such that the front side of the radiator 8 is exposed.
    Type: Application
    Filed: September 17, 2003
    Publication date: August 11, 2005
    Applicant: SHIN CATERPILLAR MITSUBISHI LTD
    Inventors: Kouhei Fujita, Kenichi Yokota, Kyoko Yamada, Shigeru Kojima, Atsushi Yamakawa, Takao Masayasu, Takahiro Okudaira, Masafumi Iguchi
  • Publication number: 20040079004
    Abstract: Mud and sand are prevented from entering between support-receiving members since both ends of the roller shaft are constructed so as to be held at both sides thereof when providing the upper roller on the travelling body frame secured in a civil engineering apparatus. The first and second support receiving members 19, 20 are constructed so that the members respectively support both end portions of the roller shaft 17a of the upper roller 17 on the upper part of the track frame 11 and cross frame 12 on the travelling body frame 10 secured at the lower part of the civil engineering apparatus, wherein the roller supporting portions 19a, 20b and a pair of coupling pieces 19a, 20a for coupling the roller supporting portions 19b, 20b to the travelling body frame 10 are formed to be substantially reverse U-shaped.
    Type: Application
    Filed: August 26, 2003
    Publication date: April 29, 2004
    Inventors: Kouhei Fujita, Shigeyoshi Adachi, Jyouji Okamoto, Yuuichi Suehiro