Patents by Inventor Tsutomu Kajino

Tsutomu Kajino 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: 20170341990
    Abstract: A problem to be solved is to provide a method for processing zirconia without producing a monoclinic crystal. The solution is a method for processing zirconia, including the step of irradiating the zirconia with a laser with a pulse duration of 10?12 seconds to 10?15 seconds at an intensity of 1013 to 1015 W/cm2.
    Type: Application
    Filed: August 10, 2015
    Publication date: November 30, 2017
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Osamu KOMEDA, Takuya KONDO, Toshiyuki KAWASHIMA, Hirofumi KAN, Nakahiro SATOH, Takashi SEKINE, Takashi KURITA, Atsushi SUNAHARA, Tomoyoshi MOTOHIRO, Tatsumi HIOKI, Hirozumi AZUMA, Shigeki OHSHIMA, Tsutomu KAJINO, Yoneyoshi KITAGAWA, Yoshitaka MORI, Katsuhiro ISHII, Ryohei HANAYAMA, Yasuhiko NISHIMURA, Eisuke MIURA
  • Patent number: 8652989
    Abstract: To provide a photocatalyst having high selectivity and carrying out a reductive reaction with light having a longer wavelength. A photocatalyst has a structure in which a semiconductor and a substrate are joined, in which the substrate causes a catalytic reaction by transfer to the substrate of excited electrons, which are generated by applying light to the semiconductor.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: February 18, 2014
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shunsuke Sato, Takeshi Morikawa, Tomiko Mori, Shu Saeki, Tsutomu Kajino, Hiromitsu Tanaka
  • Publication number: 20130277209
    Abstract: The present invention provides: an oxidation reaction electrode that generates oxygen by oxidizing water; and a reduction reaction electrode that synthesizes a carbon compound by reducing carbon dioxide. The two electrodes are electrically connected. Also, the reduction reaction electrode (1) synthesizes a carbon compound by reducing carbon dioxide in a water-containing liquid using radiated light energy.
    Type: Application
    Filed: December 27, 2011
    Publication date: October 24, 2013
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shunsuke Sato, Takeo Arai, Takeshi Morikawa, Keiko Uemura, Tsutomu Kajino, Tomiko Mori
  • Patent number: 8361662
    Abstract: A novel electrocatalyst made of an oxidase having high electron transfer efficiency and an enzymatic electrode using the same are provided. The electrocatalyst is made of CueO. The enzymatic electrode comprises a carbonaceous porous body and an electrocatalyst made of CueO supported on the surface of the carbonaceous porous body. CueO is preferably CueO from Escherichia coli. The carbonaceous porous body constituting the enzymatic electrode is preferably carbonaceous gel. Also, the enzymatic electrode may further comprise a mediator which facilitates transfer of electron between the carbonaceous porous body and said CueO.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: January 29, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kyoto University, National University Corporation Kanazawa University
    Inventors: Tsutomu Kajino, Norihiko Setoyama, Keiko Uemura, Hisao Kato, Kenji Kano, Seiya Tsujimura, Takeshi Sakurai, Kunishige Kataoka
  • Patent number: 8105630
    Abstract: A composition containing an extremely poorly water-soluble drug and obtained by treating, with a supercritical fluid or subcritical fluid of carbon dioxide, a mixture comprising a porous silica material and the extremely poorly water-soluble drug; and its production process. The porous silica material has an average pore diameter in a range of from 1 to 20 nm, pores having diameters within ±40% of the average pore size account for at least 60% of a total pore volume of the porous silica material, and in X-ray diffractometry, the porous silica material has at least one peak at a position of diffraction angle (2?) corresponding to a d value of at least 1 nm. The composition according to the present invention, which contains the extremely poorly water-soluble drug, is excellent in the dissolution of the extremely poorly water-soluble drug.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: January 31, 2012
    Assignees: Kowa Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Hiroshi Miura, Makoto Kanebako, Masayuki Kanishi, Toshio Inagi, Hirofumi Takeuchi, Tsutomu Kajino, Yoshiaki Fukushima, Haruo Takahashi
  • Publication number: 20110143929
    Abstract: To provide a photocatalyst having high selectivity and carrying out a reductive reaction with light having a longer wavelength. A photocatalyst has a structure in which a semiconductor and a substrate are joined, in which the substrate causes a catalytic reaction by transfer to the substrate of excited electrons, which are generated by applying light to the semiconductor.
    Type: Application
    Filed: August 10, 2009
    Publication date: June 16, 2011
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shunsuke Sato, Takeshi Morikawa, Tomiko Mori, Shu Saeki, Tsutomu Kajino, Hiromitsu Tanaka
  • Publication number: 20100040910
    Abstract: A novel electrocatalyst made of an oxidase having high electron transfer efficiency and an enzymatic electrode using the same are provided. The electrocatalyst is made of CueO. The enzymatic electrode comprises a carbonaceous porous body and an electrocatalyst made of CueO supported on the surface of the carbonaceous porous body. CueO is preferably CueO from Escherichia coli. The carbonaceous porous body constituting the enzymatic electrode is preferably carbonaceous gel. Also, the enzymatic electrode may further comprise a mediator which facilitates transfer of electron between the carbonaceous porous body and said CueO.
    Type: Application
    Filed: September 5, 2007
    Publication date: February 18, 2010
    Inventors: Tsutomu Kajino, Norihiko Setoyama, Keiko Uemura, Hisao Kato, Kenji Kano, Seiya Tsujimura, Takeshi Sakurai, Kunishige Kataoka
  • Publication number: 20070196659
    Abstract: A carbon gel composite material including: a carbon gel which is composed of primary particles with an average particle diameter of 2 to 50 nm, where no x-ray diffraction peaks are observed over a scan angle (2?) range of 0.5 to 10° (CuK60 radiation) and where in a pore size distribution calculated from an adsorption/desorption isotherm, if a pore diameter corresponding to the peak of the pore size distribution is not smaller than 1 nm and is smaller than 10 nm (pore diameter (d)), pores accounting for 60% or more of the total pore volume have a pore diameter within plus or minus 2 nm of the pore diameter (d), and if a pore diameter corresponding to the peak of the pore size distribution is in a range of 10 to 50 nm (pore diameter (D)), pores accounting for 60% or more of the total pore volume have a pore diameter in a range of (0.75×D) to (1.25×D); and at least one adsorbed component selected from the group consisting of proteins, metal complexes and metals, which is adsorbed on the carbon gel.
    Type: Application
    Filed: August 31, 2005
    Publication date: August 23, 2007
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Norihiko Setoyama, Tsutomu Kajino, Hideki Takagi, Takahiko Asaoka, Yoshiaki Fukushima
  • Publication number: 20060293327
    Abstract: A composition containing an extremely poorly water-soluble drug and obtained by treating, with a supercritical fluid or subcritical fluid of carbon dioxide, a mixture comprising a porous silica material and the extremely poorly water-soluble drug; and its production process. The porous silica material has an average pore diameter in a range of from 1 to 20 nm, pores having diameters within ±40% of the average pore size account for at least 60% of a total pore volume of the porous silica material, and in X-ray diffractometry, the porous silica material has at least one peak at a position of diffraction angle (2?) corresponding to a d value of at least 1 nm. The composition according to the present invention, which contains the extremely poorly water-soluble drug, is excellent in the dissolution of the extremely poorly water-soluble drug.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 28, 2006
    Applicants: Kowa Co. Ltd., KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hiroshi Miura, Makoto Kanebako, Masayuki Kanishi, Toshio Inagi, Hirofumi Takeuichi, Tsutomu Kajino, Yoshiaki Fukushima, Haruo Takahashi
  • Patent number: 6966411
    Abstract: In a valve structure of a hydraulic shock absorber for a vehicle structured by laminating a first leaf valve, a small-diameter leaf valve and a plurality of second leaf valves, an inner leaf valve is provided between a plurality of second leaf valves. An annular outer leaf valve having a larger thickness than that of the inner leaf valve is provided in an outer peripheral side of the inner leaf valve.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: November 22, 2005
    Assignee: Showa Corporation
    Inventor: Tsutomu Kajino
  • Publication number: 20040211633
    Abstract: In a valve structure of a hydraulic shock absorber for a vehicle structured by laminating a first leaf valve, a small-diameter leaf valve and a plurality of second leaf valves, an inner leaf valve is provided between a plurality of second leaf valves. An annular outer leaf valve having a larger thickness than that of the inner leaf valve is provided in an outer peripheral side of the inner leaf valve.
    Type: Application
    Filed: November 25, 2003
    Publication date: October 28, 2004
    Inventor: Tsutomu Kajino
  • Publication number: 20040053354
    Abstract: A method for optically immobilizing very small objects, where a material with the capability of photoinduced deformation to possibly immobilize very small objects is used at least as a surface layer of a carrier and where the very small objects are immobilized via irradiation light while they are arranged on the surface of the carrier. Very small objects particularly preferably include proteins, nucleic acids and the like. A very small object-immobilized carrier having immobilized very small objects in such manner, particularly a biosensor. A method for observing a very small object immobilized on the surface of a carrier by an appropriate approach giving displacement force to the very small object. The present invention provides a method for strongly immobilizing very small objects on the surface of a carrier with a simple tool.
    Type: Application
    Filed: March 4, 2003
    Publication date: March 18, 2004
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Taiji Ikawa, Osamu Watanabe, Fumihiko Hoshino, Takashi Matsuyama, Tsutomu Kajino, Haruo Takahashi, Masaaki Tsuchimori, Takuya Mitsuoka
  • Publication number: 20020015985
    Abstract: The invention features an immobilized enzyme wherein an enzyme or an active unit of the enzyme is immobilized in a structural unit having structural stability; namely, the present invention provides an immobilized enzyme comprising: a structural unit having structural stability; and an enzyme having an active unit, the enzyme, or the active unit being immobilized in the structural unit; in the preferred aspects, the structural unit is a porous substance having homogeneous pores, a pore size (diameter) of the porous substance of the structural unit is almost the same as that of the enzyme to be immobilized or the active unit of the enzyme, and the structural unit comprises a mesoporous silica porous material to be formed via a layered silicate.
    Type: Application
    Filed: February 18, 1999
    Publication date: February 7, 2002
    Inventors: HARUO TAKAHASHI, SHINJI INAGAKI, TSUTOMU KAJINO, ARIMITSU USUKI, BO LI
  • Patent number: 5714346
    Abstract: A host-vector system suitable for production of human growth hormone (hGH) and a process for production of hGH using the same are provided. As an hGH expression plasmid, a recombinant DNA wherein a DNA coding for hGH is linked to the 3'-terminal of a DNA containing a promoter region derived from Bacillus brevis is provided, and as a host, especially a mutant Bacillus brevis substantially not exhibiting protease activity to hGH is provided. A microorganism obtained by transforming said host with said hGH expression plasmid efficiently produces hGH when it is cultured.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: February 3, 1998
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Shigezo Udaka, Tsutomu Kajino, Yoko Saito, Masana Hirai, Yukio Yamada, Fumihiko Hoshino
  • Patent number: 5700659
    Abstract: A highly thermostable polypeptide possessing protein disulfide isomerase (PDI) activity, a gene coding for the polypeptide and a process for producing the polyeptide are provided. The polypeptide possessing PDI activity is characterized by A) having a capability of catalyzing a disulfide exchange in proteins, B) recognizing mainly ribonuclease A as a substrate, C) having a suitable active temperature of 20.degree. to 70.degree. C., D) being stable at a pH value of 6 to 9, and E) having a molecular weight of about 60,000 to 62,000. Since it has a higher thermostability and exhibits a stable activity in a wider dithiothreitol concentration range as compared with the conventional PDI, it is possible to provide a novel enzyme active protein which can be advantageously used for a refolding reaction of certain proteins.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 23, 1997
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkusho
    Inventors: Yukio Yamada, Osamu Asami, Hidehiko Sugiyama, Chie Idekoba, Fumihiko Hoshino, Masana Hirai, Tsutomu Kajino, Takao Imaeda, Kiyoko Sarai
  • Patent number: 5496719
    Abstract: A highly thermostable polypeptide possessing protein disulfide isomerase (PDI) activity, a gene coding for the polypeptide and a process for producing the polypeptide are provided. The polypeptide possessing PDI activity is characterized by A) having a capability of catalyzing a disulfide exchange in proteins, B) recognizing mainly ribonuclease A as a substrate, C) having a suitable active temperature of 20.degree. to 70.degree. C., D) being stable at a pH value of 6 to 9, and E) having a molecular weight of about 60,000 to 62,000. Since it has a higher thermostability and exhibits a stable activity in a wider dithiothreitol concentration range as compared with the conventional PDI, it is possible to provide a novel enzyme active protein which can be advantageously used for a refolding reaction of certain proteins.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: March 5, 1996
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Yukio Yamada, Osamu Asami, Hidehiko Sugiyama, Chie Idekoba, Fumihiko Hoshino, Masana Hirai, Tsutomu Kajino, Takao Imaeda, Kiyoko Sarai