Patents by Inventor Masaaki Matumura

Masaaki Matumura 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: 5007726
    Abstract: An eyeglass member, typically a nose pad or a temple end piece, which maintains its aesthetic appearance and close fit over long periods of service. The member has a cured coating of a fluorine-containing silicone on its surface or is made of a fluorine-containing silicone.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: April 16, 1991
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akio Suzuki, Hirofumi Kishita, Shigehisa Sonegawa, Masaaki Matumura, Takeshi Hoashimoto
  • Patent number: 4287114
    Abstract: The adhesive bonding of a silicone rubber to a metal surface can be very much improved by the use of the inventive primer composition, in particular, with respect to the heat resistance and anti-oil resistance of the adhesion. The inventive primer composition comprises (a) a substantially linear diorganopolysiloxane of gum-like consistency free from aliphatic unsaturation, (b) an organopolysiloxane with the organic group/silicon atom molar ratio of 1.9 to 2.3 and having a limited amount of vinyl groups directly bonded to the silicon atoms and a viscosity of 5 to 10,000 centistokes at 25.degree. C., (c) an organopolysiloxane resin with the molar ratio of organic groups/silicon atoms of 0.5 to 1.7, (d) an organosilane compound such as vinyl trimethoxysilane or vinyl tris(2-methoxyethoxy) silane, (e) a finely divided silica filler, (f) an organic peroxide and (g) a curing agent for silicone resins, all in limited weight proportions.
    Type: Grant
    Filed: November 6, 1979
    Date of Patent: September 1, 1981
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kunio Itoh, Takeshi Fukuda, Masaaki Matumura