Patents by Inventor Masashi Suganuma

Masashi Suganuma 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: 7462388
    Abstract: The present invention relates to a conductive resin molded product having an insulating skin produced by a composite comprising a non-conductive resin and conductive material. The invention also provides a method for producing the conductive resin molded product.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: December 9, 2008
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Atsushi Koide, Yoshitoshi Yamagiwa, Masashi Suganuma, Yoshihiko Takahashi
  • Publication number: 20080159906
    Abstract: A method for manufacturing a composite metal material combined with a nanocarbon material comprises heating a metal alloy to a half-melted state in which both liquid and solid phases are present. Next, a nongraphitized nanocarbon material is added to the half-melted metal alloy and stirred to form a composite metal material combined with a nanocarbon.
    Type: Application
    Filed: June 16, 2007
    Publication date: July 3, 2008
    Inventors: Masashi Suganuma, Tomoyuki Sato, Atsushi Kato
  • Publication number: 20080127777
    Abstract: The present invention provides a method for manufacturing a composite of a carbon nanomaterial and a metallic material which has a homogeneous composite metal structure and thixotropic properties by compositing a metallic material of a non-ferrous metal alloy with a carbon nanomaterial by using both stirring and ultrasonic vibration. The method comprises compositing the metallic material of the non-ferrous metal alloy with the carbon nanomaterial by adding the carbon nanomaterial in a state where the metallic material shows thixotropic properties by spheroidization of solid phase in a semi-solid state, and the compositing is performed by a process for stirring and kneading the semi-solid metallic material while keeping the temperature thereof at a solid-liquid coexisting temperature, and a process for dispersing the carbon nanomaterial to liquid phase between solid phases by ultrasonic vibration.
    Type: Application
    Filed: May 11, 2007
    Publication date: June 5, 2008
    Inventors: Tetsuichi Motegi, Fumi Tanabe, Masashi Suganuma, Kazuo Anzai
  • Publication number: 20080006385
    Abstract: A composite material composed of nanocarbon materials and metallic materials for a matrix is extrusion molded to have the nanocarbon materials oriented in one direction.
    Type: Application
    Filed: May 24, 2006
    Publication date: January 10, 2008
    Applicants: NISSEI PLASTIC INDUSTRIAL CO, LTD., NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Masashi Suganuma, Atsushi Kato, Shigeharu Kamado, Daisuke Tsushima
  • Patent number: 7311135
    Abstract: A composite material composed of nanocarbon materials and metallic materials for a matrix is extrusion molded to have the nanocarbon materials oriented in one direction.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: December 25, 2007
    Assignees: Nissei Plastic Industrial Co., Ltd., Nagaoka University of Technology
    Inventors: Masashi Suganuma, Atsushi Kato, Shigeharu Kamado, Daisuke Tsushima
  • Patent number: 7294302
    Abstract: To control the thickness of the skin layer of a composite resin molded product by a viscosity difference obtained by varying the viscosity by adding another ultra-minute substance to a raw resin material. The composite resin molded product comprising the skin layer formed of a first thermoplastic resin and the core layer formed of a second thermoplastic resin is molded by injection. The viscosity difference between the resins is controlled by adding a carbon nanomaterial to one or the other of the thermoplastic resins. The thickness of the skin layer is controlled by the viscosity difference. The first thermoplastic resin and the second thermoplastic resin are of the same kind or different kinds of resins.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: November 13, 2007
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Atsushi Koide, Yoshitoshi Yamagiwa, Masashi Suganuma
  • Publication number: 20060269435
    Abstract: A manufacturing method is provided to be used in place of a conventional mechanical alloying method. A powdered metal and a nanocarbon material are placed in an empty metal mill vessel containing no balls, and a mixture in which the powdered metal is coated with this nanocarbon material is obtained by shaking in three dimensions.
    Type: Application
    Filed: May 24, 2006
    Publication date: November 30, 2006
    Applicant: NISSEI PLASTIC INDUSTRIAL CO, LTD.
    Inventors: Yoshitoshi Yamagiwa, Masashi Suganuma, Yasuo Shimizu
  • Patent number: 7022271
    Abstract: For observing a flow of molten resin in an injection molding apparatus, a transparent cylinder, which is formed of transparent glass or transparent plastic material, is used in place of a mold of the apparatus. Because filling the transparent cylinder with the molten resin up to the cylinder's full capacity will burst the cylinder, the molten resin injection is terminated on the way when the injected molten resin has occupied a predetermined percentage, in a range of 50–90%, of the total volume of the cylinder, so that a burst of the cylinder can be avoided. The transparent cylinder provides for an increased resin-flow observation range because of its transparency, and can be less expensive because it is formed of inexpensive glass or plastic. As a consequence, there can be provided an efficient resin-flow observing experiment apparatus at lower cost.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: April 4, 2006
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventor: Masashi Suganuma
  • Patent number: 6881575
    Abstract: The invention provides compositions and methods for inhibiting Chk1 and/or Chk2 kinases. Also provided are compositions and methods for inhibiting G2 cell arrest checkpoint, particularly in mammalian, e.g. human cells. The compositions and methods of the invention are also used to treat disorders of cell growth, such as cancer. In particular, the invention provides methods for selectively sensitizing G1 checkpoint impaired cancer cells to DNA damaging agents and treatments. Also provided are methods for screening for compounds able to interact with, e.g., inhibit, enzymes involved in the G2 cell cycle arrest checkpoint, such as Chk1 and/or Chk2/Cds1 kinase.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: April 19, 2005
    Assignee: Canbas Co., Ltd.
    Inventors: Masashi Suganuma, Takumi Kawabe
  • Patent number: 6874563
    Abstract: A carbon nano material and a resin binder are plasticized and injection molded to form a preliminarily molded member. The preliminarily molded member is degreased by a heat treatment and made to a preliminarily molded porous member composed of the carbon nano material. The preliminarily molded porous member is inserted into a cavity of a product mold. A molten low melting point metal is injected into and fills the cavity. The preliminarily molded porous member is impregnated with the low melting point metal by injection pressure, thereby a composite metal product composed of the low melting point metal material integrally composited with the carbon nano material is molded. With the above arrangement, the characteristics of the carbon nano material are applied to the composite metal product to improve the functions thereof.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: April 5, 2005
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Atsushi Koide, Kiyoto Takizawa, Yoshitoshi Yamagiwa, Masashi Suganuma, Mamoru Miyagawa
  • Publication number: 20050059116
    Abstract: The invention provides compositions and methods for inhibiting Chk1 and/or Chk2 kinases. Also provided are compositions and methods for inhibiting G2 cell arrest checkpoint, particularly in mammalian, e.g., human, cells. The compositions and methods of the invention are also used to treat disorders of cell growth, such as cancer. In particular, the invention provides methods for selectively sensitizing G1 checkpoint impaired cancer cells to DNA damaging agents and treatments. Also provided are methods for screening for compounds able to interact with, e.g., inhibit, enzymes involved in the G2 cell cycle arrest checkpoint, such as Chk1 and/or Chk2/Cds1 kinase.
    Type: Application
    Filed: October 15, 2004
    Publication date: March 17, 2005
    Applicant: CanBas Co. Ltd.
    Inventors: Masashi Suganuma, Takumi Kawabe
  • Patent number: 6860314
    Abstract: A low melting point metal material is made to a thixotropic state in which liquid phases and solid phases coexists. In the thixotropic state of the low melting point metal material, a carbon nano material is kneaded with the low melting point metal material and forms a composite material. Thus obtained composite material is supplied to a metal molding machine and injected into a mold in a thixotropic state or a completely molten state of the metal so that the composite material fills the mold, thereby the composite material is molded to a composite metal product. With the above process, it is possible to injection mold the composite metal product to which the characteristics of the carbon nano material are applied.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: March 1, 2005
    Assignee: Nissei Plastic Industrial Co. Ltd.
    Inventors: Atsushi Koide, Kiyoto Takizawa, Yoshitoshi Yamagiwa, Masashi Suganuma, Mamoru Miyagawa
  • Publication number: 20040130066
    Abstract: To control the thickness of the skin layer of a composite resin molded product by a viscosity difference obtained by varying the viscosity by adding another ultra-minute substance to a raw resin material.
    Type: Application
    Filed: November 18, 2003
    Publication date: July 8, 2004
    Inventors: Atsushi Koide, Yoshitoshi Yamagiwa, Masashi Suganuma
  • Publication number: 20040131841
    Abstract: To make the surface of a conductive resin molded product nonconductive with the resin by adopting a carbon nano material as a conductive compounding material, and, accordingly, to make it possible to expand the use of the conductive resin molded product and use it as a base material of electronic equipment.
    Type: Application
    Filed: November 25, 2003
    Publication date: July 8, 2004
    Inventors: Atsushi Koide, Yoshitoshi Yamagiwa, Masashi Suganuma, Yoshihiko Takahashi
  • Publication number: 20040067153
    Abstract: A carbon nano material is mixed with a metal material in a powder state. A resultant mixed material is compressed by a hot press and molded to granules. The metal in the granules are melted, blended and thus obtained composite material is injected into and fill a mold to form a composite metal product comprising the carbon nano material and the metal material. With the above process, it is possible to injection mold said granules to obtain the composite metal product to which the characteristics of the carbon nano material are applied.
    Type: Application
    Filed: August 21, 2003
    Publication date: April 8, 2004
    Inventors: Atsushi Koide, Kiyoto Takizawa, Yoshitoshi Yamagiwa, Masashi Suganuma, Mamoru Miyagawa
  • Publication number: 20040035548
    Abstract: A carbon nano material and a resin binder are plasticized and injection molded to form a preliminarily molded member. The preliminarily molded member is degreased by a heat treatment and made to a preliminarily molded porous member composed of the carbon nano material. The preliminarily molded porous member is inserted into a cavity of a product mold. A molten low melting point metal is injected into and fills the cavity. The preliminarily molded porous member is impregnated with the low melting point metal by injection pressure, thereby a composite metal product composed of the low melting point metal material integrally composited with the carbon nano material is molded. With the above arrangement, the characteristics of the carbon nano material are applied to the composite metal product to improve the functions thereof.
    Type: Application
    Filed: August 21, 2003
    Publication date: February 26, 2004
    Inventors: Atsushi Koide, Kiyoto Takizawa, Yoshitoshi Yamagiwa, Masashi Suganuma, Mamoru Miyagawa
  • Publication number: 20030141614
    Abstract: For observing a flow of molten resin in an injection molding apparatus, a transparent cylinder, which is formed of transparent glass or transparent plastic material, is used in place of a mold of the apparatus. Because filling the transparent cylinder with the molten resin up to the cylinder's full capacity will burst the cylinder, the molten resin injection is terminated on the way when the injected molten resin has occupied a predetermined percentage, in a range of 50-90%, of the total volume of the cylinder, so that a burst of the cylinder can be avoided. The transparent cylinder provides for an increased resin-flow observation range because of its transparency, and can be less expensive because it is formed of inexpensive glass or plastic. As a consequence, there can be provided an efficient resin-flow observing experiment apparatus at lower cost.
    Type: Application
    Filed: January 27, 2003
    Publication date: July 31, 2003
    Applicant: Nissei Plastic Industrial Co., Ltd.
    Inventor: Masashi Suganuma
  • Patent number: 6558588
    Abstract: In a method for controlling an injection molding machine, a screw is advanced from an injection start position by means of velocity control, and when the screw reaches a control changeover point, pressure control is effected in place of the velocity control to apply pressure to the screw. Preliminary molding is performed to obtain an acceptable product; a total charged amount of resin during the preliminary mold is obtained on the basis of a movement distance over which the screw has moved before reaching the control changeover point during the preliminary mold; and the total charged amount is stored as a changeover target value. During ordinary molding, a total charged amount of resin is obtained on the basis of a movement distance over which the screw advances from the injection start position; and pressure control is started when the total charged amount reaches the changeover target value.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: May 6, 2003
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Takayoshi Shioiri, Masashi Suganuma, Hisato Shimizu, Yoshitoshi Yamagiwa
  • Patent number: 6533567
    Abstract: A screw injecting apparatus includes a check valve mounted on the tip end portion of a screw and adapted to be opened and closed in response to rotation of the screw, and a control for controlling operation of the screw such that in a metering phase of molding process, the screw rotates in one direction to feed a melt of molding material toward the nozzle while the check valve is in an open state, when a metered amount of melt is accumulated forward of the tip end portion, the screw moves backward by a predetermined distance to reduce a reaction from the melt accumulated around the tip end portion, thereafter, the screw rotates in the reverse direction to close the check valve and cause the screw to advance until the amount of forward movement of the screw becomes substantially equal to the predetermined distance of backward movement achieved previously.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: March 18, 2003
    Assignee: Nissei Plastic Industrial Co.
    Inventors: Masashi Suganuma, Kazuki Hayashi, Takayoshi Shioiri
  • Publication number: 20020019745
    Abstract: A method for providing data-processing service. When primary data (e.g., three-dimensional CAD data regarding product design) are uploaded via the Internet from a client computer to a server computer of an application service provider, the primary data are processed by use of an application program provided in the server computer, whereby a service for converting the primary data to secondary data (e.g., three-dimensional CAD data for mold design) is provided.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 14, 2002
    Inventors: Yoshitoshi Yamagiwa, Hoshina Masatake, Masashi Suganuma