Patents by Inventor Katsuo Matsuzaka

Katsuo Matsuzaka 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: 8012568
    Abstract: The invention provides a laminated shape-retainable sheet which has such a sufficient shape retainability that a user can give a desired shape easily to the sheet, and requires no press working step for giving a curved shape, a core for a headwear brim using the same, a brim of a headwear, and a headwear. In the laminated shape-retainable sheet of the invention, shape-retainable sheets each comprising a thermoplastic resin and each having shape retainability in a monoaxial direction are laminated and bonded onto each other in such a manner that the monoaxial directions of adjacent sheets out of the shape-retainable sheets make a predetermined angle, in particular, 45 to 90 degrees.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: September 6, 2011
    Assignee: Sekisui Seikei, Ltd.
    Inventors: Katsuo Matsuzaka, Yujiro Hirao
  • Publication number: 20080295958
    Abstract: A polyolefin resin drawn sheet 4 is laminated on at least one face of a sheet-form core material 6 having a density of 30 to 300 kgf/m3. At this time, a sheet or film 5 made of a bonding synthetic resin or rubber having a flow starting temperature lower than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4 is interposed between the core material 6 and the drawn sheet 4. The resultant stack product is heated to not less than the flow starting temperature of the synthetic resin or the rubber and not more than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4. At the same time of or after the heating, the stack product is pressed to apply a compression strain of 0.01 to 10% to the core material 6.
    Type: Application
    Filed: February 17, 2006
    Publication date: December 4, 2008
    Inventors: Michitaka Tsujimoto, Katsuo Matsuzaka, Koji Yamaguchi, Masashi Okabe, Masanori Hirata, Masafumi Ishiyama
  • Patent number: 7452440
    Abstract: A polyolefin resin drawn sheet 4 is laminated on at least one face of a sheet-form core material 6 having a density of 30 to 300 kgf/m3. At this time, a sheet or film 5 made of a bonding synthetic resin or rubber having a flow starting temperature lower than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4 is interposed between the core material 6 and the drawn sheet 4. The resultant stack product is heated to not less than the flow starting temperature of the synthetic resin or the rubber and not more than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4. At the same time of or after the heating, the stack product is pressed to apply a compression strain of 0.01 to 10% to the core material 6.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: November 18, 2008
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Michitaka Tsujimoto, Katsuo Matsuzaka, Koji Yamaguchi, Masashi Okabe, Masanori Hirata, Masafumi Ishiyama
  • Publication number: 20080110559
    Abstract: The invention provides a laminated shape-retainable sheet which has such a sufficient shape retainability that a user can give a desired shape easily to the sheet, and requires no press working step for giving a curved shape, a core for a headwear brim using the same, a brim of a headwear, and a headwear. In the laminated shape-retainable sheet of the invention, shape-retainable sheets each comprising a thermoplastic resin and each having shape retainability in a monoaxial direction are laminated and bonded onto each other in such a manner that the monoaxial directions of adjacent sheets out of the shape-retainable sheets make a predetermined angle, in particular, 45 to 90 degrees.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 15, 2008
    Inventors: Katsuo Matsuzaka, Yujiro Hirao
  • Patent number: 7094310
    Abstract: A high-pressure composite pipe includes a pipe-shaped inner layer made of a synthetic resin, and a reinforcing layer made of a stretched polyolefin resin sheet and wound on an external circumferential surface of the inner layer, with a winding direction of the reinforcing layer being oriented at a predetermined angle relative to an axis of the pipe, and a method for joining high-pressure composite pipes each including a pipe-shaped inner layer made of a synthetic resin, a reinforcing layer made of a stretched polyolefin resin sheet and wound on an external circumferential surface of the inner layer, and an outer layer made of a synthetic resin and laminated on the reinforcing layer.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: August 22, 2006
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Koji Yamaguchi, Mitsuhide Nogami, Yasuo Yamabe, Masanori Nakamura, Katsuo Matsuzaka, Takehiro Yamada, Satoshi Koma, Kenji Mizukawa, Hideki Sakakihara, Toshihide Nonaka
  • Patent number: 7063768
    Abstract: A polyolefin resin drawn sheet 4 is laminated on at least one face of a sheet-form core material 6 having a density of 30 to 300 kgf/m3. At this time, a sheet or film 5 made of a bonding synthetic resin or rubber having a flow starting temperature lower than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4 is interposed between the core material 6 and the drawn sheet 4. The resultant stack product is heated to not less than the flow starting temperature of the synthetic resin or the rubber and not more than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4. At the same time of or after the heating, the stack product is pressed to apply a compression strain of 0.01 to 10% to the core material 6.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: June 20, 2006
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Michitaka Tsujimoto, Katsuo Matsuzaka, Koji Yamaguchi, Masashi Okabe, Masanori Hirata, Masafumi Ishiyama
  • Patent number: 7025917
    Abstract: A method for producing a polyolefin stretched sheet which comprises extruding a polyolefin having a weight average molecular weight of 100,000 to 500,000 into a primary sheet, rolling the primary sheet at a rolling magnification of 5 or more, and stretching the rolled sheet into a polyolefin sheet which is totally stretched at a stretching magnification of 15 or more. The method can be employed for producing a polyolefin stretched sheet excellent in creep resistance, tensile strength and modulus in tension, with no use of a ultra-high molecular weight polyethylene and with excellent productivity.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 11, 2006
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Katsuo Matsuzaka, Koichi Adachi, Michiaki Sasayama, Koji Yamaguchi
  • Publication number: 20050224174
    Abstract: A polyolefin resin drawn sheet 4 is laminated on at least one face of a sheet-form core material 6 having a density of 30 to 300 kgf/m3. At this time, a sheet or film 5 made of a bonding synthetic resin or rubber having a flow starting temperature lower than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4 is interposed between the core material 6 and the drawn sheet 4. The resultant stack product is heated to not less than the flow starting temperature of the synthetic resin or the rubber and not more than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4. At the same time of or after the heating, the stack product is pressed to apply a compression strain of 0.01 to 10% to the core material 6.
    Type: Application
    Filed: June 10, 2005
    Publication date: October 13, 2005
    Inventors: Michitaka Tsujimoto, Katsuo Matsuzaka, Koji Yamaguchi, Masashi Okabe, Masanori Hirata, Masafumi Ishiyama
  • Patent number: 6688339
    Abstract: A high-pressure composite pipe of the present invention comprises an inner layer pipe made of a synthetic resin, and a reinforcing layer formed by spirally winding a stretched polyolefin resin sheet on an external circumferential surface of the inner layer pipe. The synthetic resin for the inner layer pipe or a heat-sealable resin is filled into a gap defined by the stretched polyolefin resin sheet, thereby avoiding penetration of water from a cut surface of the pipe.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: February 10, 2004
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Koji Yamaguchi, Katsuo Matsuzaka, Takehiro Yamada, Koichi Adachi, Mitsuhide Nogami
  • Publication number: 20040007279
    Abstract: As the first object, the present invention intends to provide high-pressure composite pipes which show remarkable pressure resistance and optimum applicability in various uses and which can be economically manufactured in a light weight. As the second object, the present invention intends to provide a joining method which is capable of firmly joining the high-pressure composite pipes in a simple operation, firmly joining the high-pressure composite pipes by reinforcing the joint strength at the butt-fused area, and making a joint area adjustable to strain of the high-pressure composite pipes. To achieve these objects, a high-pressure composite pipe of the present invention comprises a pipe-shaped inner layer made of a synthetic resin, a reinforcing layer made of a stretched polyolefin resin sheet and wound on an external circumferential surface of the inner layer, and an outer layer made of a synthetic resin and disposed on an external circumferential surface of the reinforcing layer.
    Type: Application
    Filed: May 2, 2003
    Publication date: January 15, 2004
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Koji Yamaguchi, Mitsuhide Nogami, Yasuo Yamabe, Masanori Nakamura, Katsuo Matsuzaka, Takehiro Yamada, Satoshi Koma, Kenji Mizukawa, Hideki Sakakihara, Toshihide Nonaka
  • Patent number: 6629547
    Abstract: As the first object, the present invention intends to provide high-pressure composite pipes which show remarkable pressure resistance and optimum applicability in various uses and which can be economically manufactured in a light weight. To achieve this object, a high-pressure composite pipe of the present invention comprises a pipe-shaped inner layer made of a synthetic resin, a reinforcing layer made of a stretched polyolefin resin sheet and wound on an external circumferential surface of the inner layer, and an outer layer made of a synthetic resin and disposed on an external circumferential surface of the reinforcing layer. The winding direction of the reinforcing layer is oriented at a predetermined angle relative to the axis of the pipe. Between the inner layer and the reinforcing layer and between the outer layer and the reinforcing layer, adhesion layers having affinity to these layers are interposed.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: October 7, 2003
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Koji Yamaguchi, Mitsuhide Nogami, Yasuo Yamabe, Masanori Nakamura, Katsuo Matsuzaka, Takehiro Yamada, Satoshi Koma, Kenji Mizukawa, Hideki Sakakihara, Toshihide Nonaka
  • Publication number: 20030178082
    Abstract: A high-pressure composite pipe of the present invention comprises an inner layer pipe made of a synthetic resin, and a reinforcing layer formed by spirally winding a stretched polyolefin resin sheet on an external circumferential surface of the inner layer pipe. The synthetic resin for the inner layer pipe or a heat-sealable resin is filled into a gap defined by the stretched polyolefin resin sheet, thereby avoiding penetration of water from a cut surface of the pipe.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 25, 2003
    Inventors: Koji Yamaguchi, Katsuo Matsuzaka, Takehiro Yamada, Koichi Adachi, Mitsuhide Nogami
  • Publication number: 20030175539
    Abstract: A method for producing a polyolefin stretched sheet which comprises extruding a polyolefin having a weight average molecular weight of 100,000 to 500,000 into a primary sheet, rolling the primary sheet at a rolling magnification of 5 or more, and stretching the rolled sheet into a polyolefin sheet which is totally stretched at a stretching magnification of 15 or more. The method can be employed for producing a polyolefin stretched sheet excellent in creep resistance, tensile strength and modulus in tension, with no use of a ultra-high molecular weight polyethylene and with excellent productivity.
    Type: Application
    Filed: March 11, 2003
    Publication date: September 18, 2003
    Inventors: Katsuo Matsuzaka, Koichi Adachi, Michiaki Sasayama, Koji Yamaguchi
  • Publication number: 20030159777
    Abstract: A polyolefin resin drawn sheet 4 is laminated on at least one face of a sheet-form core material 6 having a density of 30 to 300 kgf/m3. At this time, a sheet or film 5 made of a bonding synthetic resin or rubber having a flow starting temperature lower than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4 is interposed between the core material 6 and the drawn sheet 4. The resultant stack product is heated to not less than the flow starting temperature of the synthetic resin or the rubber and not more than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4. At the same time of or after the heating, the stack product is pressed to apply a compression strain of 0.01 to 10% to the core material 6.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 28, 2003
    Inventors: Michitaka Tsujimoto, Katsuo Matsuzaka, Koji Yamaguchi, Masashi Okabe, Masanori Hirata, Masafumi Ishiyama