Patents by Inventor Kunihiko Shiraishi

Kunihiko Shiraishi 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).

  • ARTIFICIAL KNEE JOINT, AND BRIDGE MEMBER, INSERT MEMBER AND BASE PLATE USED THEREIN
    Publication number: 20240082009
    Abstract: An artificial knee joint 1 includes: an insert member 2 embedded in a part of a joint surface of a medial condyle MC or lateral condyle LC of a tibia T; and a bridge member 3 disposed underneath the insert member 2, and having a length that allows both ends thereof to be anchored to a cortical bone of a tibia T.
    Type: Application
    Filed: October 8, 2020
    Publication date: March 14, 2024
    Inventors: Kazunori Hino, Hiromasa Miura, Kunihiko Watamori, Yoshitaka Shiraishi, Tomofumi Kinoshita
  • Tap hole blocking material for metal melting apparatus
    Patent number: 6281266
    Abstract: Disclosed is a taphole plugging composition for metal melting apparatus, the composition comprising (a) a refractory aggregate having a maximum particle size of 5 mm or less, (b) graphite and silicon nitride each having a maximum particle size of 0.2 mm or less, (c) a refractory clay, (d) a compatibilized binder mixture comprising a phenolic resin, a ketone compound and a pitch, and (e) an organic fine fiber.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: August 28, 2001
    Assignee: Nippon Crucible Co., Ltd.
    Inventors: Kenzo Takeda, Kunihiko Shiraishi, Fumiyuki Inoue, Norio Honda
  • Refractory composition for flow casting
    Patent number: 4377413
    Abstract: A refractory composition for flow casting consists essentially of 100 parts by weight of refractory material, 0.1 to 2 parts by weight of sparingly water-soluble aluminum tripolyphosphate, 0.2 to 3 parts by weight of alkali metal silicate, 0.5 to 5 parts by weight of clay, up to 2/5 part by weight of organic binder per amount of clay, and 0.2 to 4 parts by weight of at least one hardening promoting reagent selected from the group consisting of calcium silicate and calcium aluminate.
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: March 22, 1983
    Assignees: Nippon Steel Corporation, Nippon Crucible Company, Ltd.
    Inventors: Mitsuo Nomura, Shigeru Amano, Sho Okubo, Takuo Hosaka, Kunihiko Shiraishi, Ryuzi Adachi
  • Refractory composition for flow casting
    Patent number: 4171984
    Abstract: A refractory composition for flow casting, comprising (1) 100 parts by weight of a refractory material and (2) about 1.15 to 9.4 parts by weight of a binder consisting of an alkali metal silicate, sparingly water-soluble aluminum tripolyphosphate and at least one of an organic paste and a clay, the refractory composition being capable of being kneaded with water prior to use.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: October 23, 1979
    Assignees: Nippon Crucible Co., Ltd., Teikoku Kako Co., Ltd.
    Inventors: Takuo Hosaka, Kunihiko Shiraishi, Ziro Nakano, Masanori Kinugasa