Patents by Inventor Toshiaki Katayama

Toshiaki Katayama 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: 20240092084
    Abstract: A technique capable of certainly suppressing adhesion of waste ink to hands, clothes, and the like during replacement of a waste ink tank is provided. There are included a container portion provided with an insertion port which a discharge member discharging waste ink can be inserted into and pulled out from and a shielding portion movable between a shielding position where the insertion port is shielded and an open position where the insertion port is opened.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 21, 2024
    Inventors: KOKI SHIMADA, TOSHIAKI SOMANO, YUTA ARAKI, KAORI KATAYAMA, YUSUKE TANAKA, TETSU HAMANO, ERIKA IYAMA, FUMIE KAMEYAMA, NOBUHIRO TOKI, YASUYUKI TAKANAKA, DAIJU TAKEDA
  • Patent number: 11261376
    Abstract: The present invention provides a gadolinium oxysulfide sintered body having a high light output. The problem is resolved by a gadolinium oxysulfide sintered body in which the ratio of the light transmittance T410 of 410 nm to the light transmittance T512 of 512 nm (T410/T512) is from 0.31 to 0.61, or a gadolinium oxysulfide sintered body in which the ratio of the diffraction peak intensity Iy of a phase different from gadolinium oxysulfide appearing at 2?=from 20 to 29° to the diffraction peak intensity (Ix) of (102) or (011) of gadolinium oxysulfide appearing at 2?=30°±1° (Iy/Ix) is 0.1 or less in an XRD diffraction pattern and which contains one or more activators selected from the group consisting of praseodymium, terbium, and cerium.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 1, 2022
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koji Hazu, Keiji Yamahara, Toshiaki Katayama
  • Publication number: 20190345383
    Abstract: The present invention provides a gadolinium oxysulfide sintered body having a high light output. The problem is resolved by a gadolinium oxysulfide sintered body in which the ratio of the light transmittance T410 of 410 nm to the light transmittance T512 of 512 nm (T410/T512) is from 0.31 to 0.61, or a gadolinium oxysulfide sintered body in which the ratio of the diffraction peak intensity Iy of a phase different from gadolinium oxysulfide appearing at 2?=from 20 to 29° to the diffraction peak intensity (Ix) of (102) or (011) of gadolinium oxysulfide appearing at 2?=30°±1° (Iy/Ix) is 0.1 or less in an XRD diffraction pattern and which contains one or more activators selected from the group consisting of praseodymium, terbium, and cerium.
    Type: Application
    Filed: July 25, 2019
    Publication date: November 14, 2019
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Koji HAZU, Keiji Yamahara, Toshiaki Katayama
  • Publication number: 20130001816
    Abstract: A method for recovering or producing silicon, that can recover or produce silicon using cutting scraps containing silicon carbide abrasive grains and silicon as raw materials without separating those is provided. The present invention is a method for recovering or producing silicon from cutting scraps containing silicon carbide, which are produced during a cutting or grinding of silicon ingots or silicon wafers, wherein the method comprises producing silicon by heating the cutting scraps containing silicon carbide, and a silica raw material.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Keiji Yamahara, Toshiaki Katayama, Tadashi Hashiguchi, Toshiki Shirahama, Takeshi Sawai
  • Publication number: 20130004908
    Abstract: The present invention provides a method for producing silicon by at least heating any one of raw materials for silicon production selected from a silica raw material and a carbon material; a silica raw material and silicon carbide; and silicon raw material, in a heating furnace, wherein the method comprises operating at least one of the raw materials for silicon production and a heated product in the heating furnace using a jig, and the jig comprises a non-metallic material portion having a bending strength of 100 MPa or more and a melting point higher than a melting point of silicon, and at least a portion thereof coming into contact with the raw materials for silicon production or the heated product, having a temperature of 1,000° C. or higher, is constituted of the non-metallic material portion.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Toshiaki KATAYAMA, Keiji YAMAHARA
  • Publication number: 20120211350
    Abstract: Processes or apparatuses for producing silicon by a carbon reduction in an arc furnace using a raw silica material having an iron content, an aluminum content, a calcium content, and a titanium content of 0.1% by mass or less, respectively and using a carbon material, wherein during the carbon reduction, an overcurrent which flows through an electrode of the arc furnace is mitigated using a power regulation unit or that the arc furnace is operated at a hearth power density PD (W/cm2) of 90 (W/cm2) or higher.
    Type: Application
    Filed: April 5, 2012
    Publication date: August 23, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Keiji Yamahara, Hiromi Fujimoto, Toshiaki Katayama
  • Patent number: 4918054
    Abstract: Novel compounds, called chloropolysporins B and C, and salts thereof have antibiotic properties and would appear to be members of the class of glycopeptide antibiotics containing chlorine. They may be produced by cultivating a suitable strain of miroorganism of the genus Micropolyspora, especially Micropolyspora sp. SANK 60983 (FERM BP-538). They may be combined with conventional pharmaceutically acceptable carriers or diluents for therapeutic use or incorporated into edible excipients, such as feed or water, for use as a growth-promoting agent, especially for farm animals.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: April 17, 1990
    Assignee: Sankyo Company Limited
    Inventors: Tatsuo Haneishi, Takao Okazaki, Akio Torikata, Mutsuo Nakajima, Ryuzo Enokita, Toshiaki Katayama, Seigo Iwado
  • Patent number: 4681151
    Abstract: A method for production of fiber-reinforced metal composite material having high fiber content, wherein a bundle of fiber material is impregnated with water, then this water-impregnated fiber bundle is subjected to compression and freezing to form a high density fiber shaped body, subsequently, the high density fiber shaped body is subjected to thawing and drying, while maintaining its shape as compressed, and finally molten metal is infiltrated into the fiber shaped body.
    Type: Grant
    Filed: September 26, 1986
    Date of Patent: July 21, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yoshihiro Koya, Toshiaki Katayama
  • Patent number: 4557933
    Abstract: A novel compound, called chloropolysporin, has antibiotic properties and would appear to be a member of the class of glycopeptide antibiotics containing chlorine. It may be produced by cultivating a suitable strain of microorganism of the genus Micropolyspora, especially Micropolyspora sp. SANK 60983 (FERM BP-538). It may be combined with conventional pharmaceutically acceptable carriers or diluents for therapeutic use or incorporated into edible excipients, such as feed or water, for use as a growth-promoting agent, especially for farm animals.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: December 10, 1985
    Assignee: Sankyo Company Limited
    Inventors: Tatsuo Haneishi, Takao Okazaki, Akio Torikata, Mutsuo Nakajima, Ryuzou Enokita, Toshiaki Katayama, Seigo Iwado
  • Patent number: 4336076
    Abstract: Engine cylinder block made of an aluminum alloy containing in weight 4 to 14% of Si, 1 to 5% of Cu and 0.2 to 0.8% of Mg. Method for manufacturing the cylinder block includes a heat treatment step after moulding of such aluminum alloy.
    Type: Grant
    Filed: May 14, 1980
    Date of Patent: June 22, 1982
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Mizuo Edamura, Shyunji Takamoto, Satoshi Furuitsu, Norikatsu Bekku, Toshiaki Katayama