Patents by Inventor Eiichi Sugihara

Eiichi Sugihara 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: 7150615
    Abstract: A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine at a pressure lower than the storage pressure of the physical foaming agent, mixing it with a melted resin and expanding the volume of the cavity of the mold at the time of injection, and an injection molding machine and resin composition suitable therefore.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: December 19, 2006
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Eiichi Sugihara, Michio Eriguchi, Masaki Misumi
  • Publication number: 20050006805
    Abstract: A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine at a pressure lower than the storage pressure of the physical foaming agent, mixing it with a melted resin and expanding the volume of the cavity of the mold at the time of injection, and an injection molding machine and resin composition suitable therefore.
    Type: Application
    Filed: August 3, 2004
    Publication date: January 13, 2005
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Eiichi Sugihara, Michio Eriguchi, Masaki Misumi
  • Publication number: 20050003032
    Abstract: A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine at a pressure lower than the storage pressure of the physical foaming agent, mixing it with a melted resin and expanding the volume of the cavity of the mold at the time of injection, and an injection molding machine and resin composition suitable therefore.
    Type: Application
    Filed: August 3, 2004
    Publication date: January 6, 2005
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Eiichi Sugihara, Michio Eriguchi, Masaki Misumi
  • Publication number: 20040249009
    Abstract: An olefinic thermoplastic elastomer foam of the present invention has a density of less than 700 kg/m3, a compression set of less than 60% and a density of elastically effective chains v of preferably 3.0×10−5 to 2.0×10−4 (mol/cm3). An olefinic thermoplastic elastomer composition for preparing the above foam has an equilibrium creep compliance Je0 of 1.0×10−6 to 5.0×10−4 (Pa−1) and contains a crosslinked olefin rubber and an olefin plastic in a specific proportion. The olefinic thermoplastic elastomer composition can be prepared by melt kneading a specific crosslinked olefinic thermoplastic elastomer and a specific olefin plastic.
    Type: Application
    Filed: January 30, 2004
    Publication date: December 9, 2004
    Inventors: Kiyoshi Homma, Noboru Sakamaki, Kunihide Hiraoka, Takeharu Isaki, Hirohisa Shiode, Eiichi Sugihara
  • Patent number: 6773640
    Abstract: A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine at a pressure lower than the storage pressure of the physical foaming agent, mixing it with a melted resin and expanding the volume of the cavity of the mold at the time of injection, and an injection molding machine and resin composition suitable therefore.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: August 10, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Eiichi Sugihara, Michio Eriguchi, Masaki Misumi
  • Publication number: 20030181559
    Abstract: A polymer composition (A) characterized by comprising a polymer (b) and at least one kind of substance (a) having a critical temperature of 0 to 150° C. and a critical pressure of 3 to 10 MPa, the initial content of the substance (a) in the polymer composition being 2 to 70 parts by weight relative to 100 parts by weight of the polymer (b), wherein the release duration time of the substance (a) is at least 100 hours at atmospheric pressure at 25° C.
    Type: Application
    Filed: February 25, 2003
    Publication date: September 25, 2003
    Inventors: Shigeo Nishikawa, Eiichi Sugihara, Yoko Shimada
  • Publication number: 20020017734
    Abstract: A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine at a pressure lower than the storage pressure of the physical foaming agent, mixing it with a melted resin and expanding the volume of the cavity of the mold at the time of injection, and an injection molding machine and resin composition suitable therefore.
    Type: Application
    Filed: June 21, 2001
    Publication date: February 14, 2002
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Eiichi Sugihara, Michio Eriguchi, Masaki Misumi
  • Patent number: 6328916
    Abstract: This invention provides a method for stably adding a predetermined amount of supercritical carbon dioxide at a fixed delivery rate into a forming machine and also a process for producing an expanded thermoplastic resin product by making use of the addition method. Carbon dioxide is charged from a liquefied carbon dioxide cylinder (1) into a predetermined amount deliverable pump (2) while allowing the carbon dioxide to remain in a liquefied state. When the carbon dioxide is pressurized and delivered by the predetermined amount deliverable pump (2), a delivery pressure of the carbon dioxide is controlled at an optional pressure within a range of from a critical pressure (7.4 MPa) of carbon dioxide to 40 MPa to deliver the carbon dioxide without any fluctuation of the amount of the delivery by setting up the pressure of a pressure control valve (3). The carbon dioxide is heated to a critical temperature (31° C.) of carbon dioxide or higher to convert it into supercritical carbon dioxide.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: December 11, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shigeo Nishikawa, Eiichi Sugihara, Masahiro Takedachi, Kaoru Yorita, Haruo Inoue, Yoko Shimada, Michio Eriguchi
  • Patent number: 6303666
    Abstract: A process is provided for the production of expanded olefinic thermoplastic elastomer product having good external appearance, flexibility and heat resistance. This process features using, as raw materials, a particular olefinic thermoplastic elastomer and carbon dioxide as a blowing agent.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: October 16, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kaoru Yorita, Eiichi Sugihara, Masahiro Takedachi, Haruo Inoue, Shigeo Nishikawa, Yoko Shimada, Michio Eriguchi, Takanori Sueda, Akira Uchiyama, Yuichi Ito
  • Patent number: 5256734
    Abstract: A resin composition is herein provided which comprises 100 parts by weight of a polypropylene and 20 to 100 parts by weight of a hydrogenated styrene/butadiene or styrene/isoprene elastomeric block copolymer having a melt index of not less than 25 g/10 min as determined at a temperature of 230.degree. C. and a load of 2.16 kg/cm.sup.2. A method for manufacturing a coated molded article of the resin composition is herein provided and the method comprises the steps of molding said resin composition and then applying a coating directly without any preliminary surface treatment. This method can provide a molded article having low mold shrinkage factor and linear expansion coefficient, makes it possible to reduce the amount of fillers to be incorporated and is thus effective for making the weight of automobiles lighter.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: October 26, 1993
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Eiichi Sugihara, Keigo Suehiro, Katsumi Sekiguchi, Minoru Hoshino
  • Patent number: 4983435
    Abstract: As an adhesive used between a polypropylene layer and an ethylene/vinyl alcohol copolymer layer, there is provided an adhesive composition that comprises 98.9 to 59.9% by weight of a modified polypropylene (A) partly or fully grafted with an unsaturated carboxylic acid or its derivative, 1.0 to 40% by weight of an ethylene/.alpha.-olefin copolymer (B) having a density of 0.915 to 0.940 g/cc, and a melting point of 115.degree. to 130.degree. C., and 0.1% by weight or more but less than 3% by weight of a hydrocarbon type synthetic elastomer (C).
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: January 8, 1991
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Toru Ueki, Hajime Sentoku, Takashi Miyazaki, Eiichi Sugihara
  • Patent number: 4839736
    Abstract: A CRT filter of the present invention consists of a film having a transparent conductive layer and effectively eliminates the static electricity which are generated from the CRT. Further, after the film previously having the transparent conductive layer was continuously manufactured, it can be laminated onto a nonconductive transparent sheet or plate. The transparent conductive film of a stable quality can be cheaply obtained. Thus, the CRT filter having the excellent static electricity eliminating capability and high resolution is manufactured. On the other hand, the CRT filter of the invention has such a shape as to be closely attached onto the front surface of the CRT. Therefore it is also possible to prevent such a phenomenon that the display image in the corner portion of the screen is blurred without deteriorating the resolution. The operator can continue the work without feeling the fatigue of the eyes and the mental pain.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: June 13, 1989
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Eiichi Sugihara, Hideo Amemiya, Koji Hayafune