Patents by Inventor Susumu Imai

Susumu Imai 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: 5776484
    Abstract: A non-steroidal analgesic anti-inflammatory adhesive preparation rendered by coating one surface of support with an adhesive containing S-(+)-2-(2-fluoro-4-biphenylyl)propionic acid and a styrene-isoprene-styrene block copolymer or S-(+)-2-(2-fluoro-4-biphenylyl)propionic acid and a modified copolymer in which methylmethacrylate is allowed to graft-polymerize on said copolymer, or with an adhesive containing S-(+)-2-(2-fluoro-4-biphenylyl) propionic acid, sodium carboxymethyl cellulose and sodium polyacrylate.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: July 7, 1998
    Assignee: Tokuhon Corporation
    Inventors: Yasuhiko Sasaki, Yukihiro Matsumura, Susumu Imai, Tetsuhiro Tooyama, Masamichi Orihara, Yoshio Sugimoto, Masaru Yamazaki, Mitsunari Hoshino, Masumasa Uchikawa, Hiroshi Arai
  • Patent number: 5409659
    Abstract: The invention relates to a hollow injection-molding method of forming a hollow portion in molten resin in a mold cavity by introducing a pressurized fluid, and also to a pressurized fluid introducing and discharging apparatus therefor, and has an object of eliminating the backflow of the molten resin into a pressurized fluid passage. A gap between a cylindrical sleeve and a shaft core inserted into the sleeve is used as the pressurized fluid passage. The front end of the shaft core is projected into a mold beyond the sleeve front end to serve as a guide face. By sliding the shaft core, the state of an opening portion of the pressurized fluid passage in the side of the mold is changed between a narrowed state where the pressurized fluid can pass through the opening portion but the molten resin cannot enter the opening portion and a widened state allowing the pressurized fluid to rapidly discharge. The guide face allows the pressurized fluid to be reliably introduced into the mold cavity.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: April 25, 1995
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Matsumoto, Susumu Imai, Masahiro Takeyasu
  • Patent number: 5173241
    Abstract: In the injection molding of a hollow shaped article by the injection of not only molten synthetic resin but also compressed gas into a die, a method is provided by this invention which effects the supply of the compressed gas with a multistage compressor and the injected compressed gas is recovered in a recovery container connected to the suction side of the multistage compressor. For the injection molding of a hollow shaped article by the injection of not only molten synthetic resin but also compressed gas into a die, an apparatus is provided by this invention which has a gas nozzle for injecting the compressed gas into the die connected through a first switching valve to the discharge side of the multistage compressor and, at the same time, has the gas nozzle connected through a second switching valve to a recovery container connected to the suction side of the multistage compressor.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: December 22, 1992
    Assignee: Asahi Kasei Kogoyo Kabushiki Kaisha
    Inventors: Takehiro Shibuya, Yasuyoshi Ishihara, Susumu Imai
  • Patent number: 4952365
    Abstract: A process for producing a foamable thermoplastic resin article having a relatively thin non-foamed outer shell with a smooth surface and a foamed core portion, which has excellent dimensional stability, by pressurizing a mold cavity under a pressure of gas less than the foaming pressure and not less than the surface smoothing pressure of the foamable resin and permitting the pressure of the gas simultaneously with completion of the injection to be communicated to an atmospheric pressure or lower.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: August 28, 1990
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takehiro Shibuya, Takashi Nagahara, Susumu Imai
  • Patent number: 4389693
    Abstract: An arrester having at least two stacks of non-linear resistors connected in series, an arcing gap device connected to shunt one stack of resistors when the gap means sparks over, and a hermetically sealed housing enclosing the resistor stacks and arcing gap device and filled with sulfur hexafluoride gas having a gauge pressure not less than 2 kg/cm.sup.2. The impedance of the one resistor stack is from about 15% to about 35% of the total impedance of the two resistor stacks when the arcing gap means sparks over, and the rated voltage of the arrester is not less than about 50 KV.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: June 21, 1983
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Satoru Yanabu, Susumu Nishiwaki, Mizuho Yamashita, Toshikazu Satoh, Yoichi Murakami, Susumu Imai
  • Patent number: 4117586
    Abstract: A machine tool with an automatic tool changer having a tool storage magazine accommodating tools having the same shank configuration as that of the first shank, tools having the same configuration as that of the second shank, and a tool adaptor which has the same configuration as the larger of the first shank or second shank and which incorporate the smaller shank sections of the tools of the first shank or second shank configuration.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: October 3, 1978
    Assignee: Hitachi Seiki Co., Ltd.
    Inventors: Yoshiro Uchida, Toshihiko Mizuno, Isao Higuchi, Susumu Imai, Shyoichiro Usui
  • Patent number: 3966372
    Abstract: A first thermoplastic resin for forming the shell of an article is charged into the front portion of an injection cylinder and a second thermoplastic resin for forming the core of the article is charged into the rear portion of the injection cylinder. Both resins are substantially separated, being in contact only a central area of the cross-sectional plane of the injection cylinder. These thermoplastic resins are injected in a mass into a mold cavity with the second resin enveloped by the first resin, and finally solidified in the mold cavity resulting in a molded article having sandwich construction. Various sandwich articles can be obtained easily by means of a single injection molding machine. The process also allows repeated injection operations without exposure of the core material on the surface of the molded article.
    Type: Grant
    Filed: May 16, 1974
    Date of Patent: June 29, 1976
    Assignee: Asahi-Dow Limited
    Inventors: Akio Yasuike, Takehiro Shibuya, Kaoru Toyouchi, Susumu Imai