Patents by Inventor Katsunori Sugita

Katsunori Sugita 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).

  • Publication number: 20210108747
    Abstract: A fitting assembly for fluid device is provided, which can reduce space for installation of fluid devices. The assembly includes a first port, a second port, a first annular member, a second annular member, and a connector. The first port is annular and installed at a first fluid device to be connected with its first fluid channel. The second port is annular and installed at a second fluid device to be connected with its second fluid channel. The first annular member is installed at the first port and has a first coupler. The second annular member is installed at the second port and has a second coupler to be coupled with the first coupler to fix the second annular member to the first annular member. The connector is installed between the first port and the second port and seals gaps between the connector and the first and second ports.
    Type: Application
    Filed: June 15, 2018
    Publication date: April 15, 2021
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Toshihide IIDA, Tatsuya FUJII, Katsunori SUGITA, Takahito KONISHI, Tomoyuki KOIKE
  • Patent number: 9239115
    Abstract: A gland packing provided in a fluid apparatus such as a pump and compressed in an axial direction so as to prevent penetration leakage of a fluid is provided. The gland packing has a packing base material 11 of a predetermined length including a band-like flat braid 12 braided by moving a plurality of yarns 13 along one track K. The band-like packing base material 11 is shaped into a ring by abutting longitudinal ends 12a and 12b of the packing base material 11 so that a width direction thereof is parallel with a packing axial direction, and is then compressed in the axial direction, whereby the packing base material 11 is overlappedly folded in a packing axial direction, with a longitudinal direction of the packing base material 11 as a direction of folding lines 14.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: January 19, 2016
    Assignee: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Takahisa Ueda, Masaru Fujiwara, Katsunori Sugita, Hiroki Tanabe, Kodai Inoue, Hiroyoshi Nakamitsu
  • Publication number: 20130154198
    Abstract: A gland packing provided in a fluid apparatus such as a pump and compressed in an axial direction so as to prevent penetration leakage of a fluid is provided. The gland packing has a packing base material 11 of a predetermined length including a band-like flat braid 12 braided by moving a plurality of yarns 13 along one track K. The band-like packing base material 11 is shaped into a ring by abutting longitudinal ends 12a and 12b of the packing base material 11 so that a width direction thereof is parallel with a packing axial direction, and is then compressed in the axial direction, whereby the packing base material 11 is overlappedly folded in a packing axial direction, with a longitudinal direction of the packing base material 11 as a direction of folding lines 14.
    Type: Application
    Filed: November 6, 2012
    Publication date: June 20, 2013
    Inventors: Takahisa UEDA, Masaru FUJIWARA, Katsunori SUGITA, Hiroki TANABE, Kodai Inoue, Hiroyoshi NAKAMITSU
  • Patent number: 8375693
    Abstract: A yarn which is configured by using expanded graphite and polytetrafluoroethylene (PTEE) is provided while improving the yarn so that the expanded graphite functioning as a core member is not exposed and it can be simply produced. The yarn is formed by: forming a base member configured by enveloping an expanded graphite sheet member with a PTEE film, in a state where the PTEE film and the expanded graphite sheet member are aligned with each other in longitudinal direction; and twisting the base member. The base member has an approximately circular sectional shape, and is configured by enveloping the expanded graphite sheet member having a rounded sectional shape with the PTEE film which is rounded in a pipe-like shape.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: February 19, 2013
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Takahisa Ueda, Takashi Ikeda, Katsunori Sugita, Masaru Fujiwara, Hiroki Tanabe, Kodai Inoue
  • Publication number: 20110162338
    Abstract: A yarn which is configured by using expanded graphite and PTEE is provided while improving the yarn so that the expanded graphite functioning as a core member is not exposed and it can be simply produced. Therefore, a yarn is formed by: forming a base member 3 configured by enveloping an expanded graphite sheet member 1 with a PTEE film 2, in a state where the PTEE film 2 and the expanded graphite sheet member 1 are aligned with each other in longitudinal direction; and twisting the base member 3. The base member 3 has an approximately circular sectional shape, and is configured by enveloping the expanded graphite sheet member 1 having a rounded sectional shape with the PTEE film 2 which is rounded in a pipe-like shape.
    Type: Application
    Filed: August 10, 2009
    Publication date: July 7, 2011
    Applicant: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Takahisa Ueda, Takashi Ikeda, Katsunori Sugita, Masaru Fujiwara, Hiroki Tanabe, Kodai Inoue
  • Patent number: 7442329
    Abstract: A separator for fuel cells is provided, which has excellent electrical conductivity, mechanical strength and gas impermeability. The separator is a molded article of a carbon-phenol resin molding compound obtained by reacting a phenol with an aldehyde in the presence of a catalyst, while mixing them with a carbon powder. As the catalyst, it is possible to use at least one selected from tertiary amines, carbonates, hydroxides and oxides of alkali metals or alkali earth metals. It is preferred that a content of nitrogen constituent in the molding compound is 0.3 wt % or less, and a carbon content in the molding compound is within a range of 75 wt % to 97 wt %.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: October 28, 2008
    Assignees: Nippon Pillar Packing Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Tsunemori Yoshida, Katsunori Sugita
  • Patent number: 7199186
    Abstract: A carbon-phenol resin molding compound is provided, which is preferably used to obtain molded articles having high electrical and thermal conductivities as well as good mechanical strength. The resin molding compound is prepared by reacting a phenol with an aldehyde in the presence of a catalyst, while mixing them with a carbon powder such that a content of the carbon powder in the molding compound is 75 wt % or more. The catalyst is at least one selected from tertiary amines, carbonates, hydroxides and oxides of alkali metals or alkali earth metals.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: April 3, 2007
    Assignees: Lignyte Co., Ltd., Nippon Pillar Packing Co., Ltd.
    Inventors: Isamu Ide, Masanobu Nishikawa, Hisato Higuchi, Tsunemori Yoshida, Katsunori Sugita
  • Publication number: 20060263669
    Abstract: A separator for fuel cells is provided, which has excellent electrical conductivity, mechanical strength and gas impermeability. The separator is a molded article of a carbon-phenol resin molding compound obtained by reacting a phenol with an aldehyde in the presence of a catalyst, while mixing them with a carbon powder. As the catalyst, it is possible to use at least one selected from tertiary amines, carbonates, hydroxides and oxides of alkali metals or alkali earth metals. It is preferred that a content of nitrogen constituent in the molding compound is 0.3 wt % or less, and a carbon content in the molding compound is within a range of 75 wt % to 97 wt %.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 23, 2006
    Inventors: Tsunemori Yoshida, Katsunori Sugita
  • Publication number: 20060172175
    Abstract: According to the invention, in a separator molded member (4A) for a fuel cell which is produced by: loading a complex compound that is configured by bonding graphite powder by means of a thermosetting resin, into a mold (14); and forming ribs (11) for forming gas passages by the resin molding process, a section of the separator molded member is formed into a stack structure in which part of flat graphite particles (14) overlap with one another in the thickness direction, whereby the gas impermeability, the mechanical strength, and the conductivity which are required in a fuel cell separator can be improved.
    Type: Application
    Filed: March 29, 2006
    Publication date: August 3, 2006
    Inventors: Kazuhiko Otawa, Tsunemori Yoshida, Katsunori Sugita
  • Patent number: 7033692
    Abstract: According to the invention, in a separator molded member (4A) for a fuel cell which is produced by: loading a complex compound that is configured by bonding graphite powder by means of a thermosetting resin, into a mold (14); and forming ribs (11) for forming gas passages by the resin molding process, the surfaces of the ribs (11) are alkali-treated by, for example, etching by using an alkaline solution, and graphite particles (14) which are flat and soft are exposed from the top surfaces of the ribs (11) which function as a contact surface with an electrode in the separator molded member (4A), and resin defective portions (15) are formed between adjacent graphite particles (14), whereby the contact area with an electrode is enlarged, so that the performance and efficiency of the fuel cell can be improved by remarkable lowering of the contact resistance.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: April 25, 2006
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Kazuhiko Otawa, Tsunemori Yoshida, Katsunori Sugita
  • Patent number: 7029783
    Abstract: According to the invention, in a separator (4) for a fuel cell which is produced by: loading a complex compound that is configured by bonding graphite powder by means of a thermosetting resin, into a mold (14); and forming ribs (11) for forming gas passages by the resin molding process, the surfaces of the ribs (11) are etched by an alkaline solution or alkali-treated, a surface resin layer which is formed on the surface of the separator (4) is removed away, and graphite particles showing a plate-like form are exposed from the surfaces of the ribs (11) which function as a contact surface with an electrode, whereby the contact resistance with an electrode is remarkably lowered, so that the performance and efficiency of the fuel cell can be improved.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: April 18, 2006
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Kazuhiko Otawa, Tsunemori Yoshida, Katsunori Sugita
  • Patent number: 6864008
    Abstract: To provide a separator for a fuel cell made of graphite excellent in mechanical strength and gas impermeability as well as electric characteristic properties, a separator for a fuel cell is produced from a molded body produced by filling a graphite powder 21 whose surface is coated with resin 20 in a molding die and by pressure-molding the powder. Such a molded body is provided with excellent mechanical strength of 40 MPa of bending strength or higher, 10×10?8 cc·cm/cm2·sec·atm of gas permeability or lower, and electric property of 10×10?3 ?·cm of the volume resistance or lower even if the content of resin is decreased to as low as 10 to 24 wt. %.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: March 8, 2005
    Assignees: Nippon Pilllar Packing Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiko Otawa, Shoji Kato, Katsunori Sugita
  • Patent number: 6660420
    Abstract: In a separator for a fuel cell and a method of producing a separator for a fuel cell according to the invention, bondcarbon is used in which composition ratios are set to 60 to 90 wt. % (preferably, 70 to 87 wt. %) of graphite powder having an average diameter in a range of 15 to 125 &mgr;m (preferably, 40 to 100 &mgr;m), and 10 to 40 wt. % (preferably, 13 to 30 wt. %) of a thermosetting resin. The compound is previously cold-molded into a shape similar to a final molded shape. The preliminary molded member is then placed in a mold, and then molded into a separator of the final shape by applying a pressure of a range of 10 to 100 MPa. The surface roughness Ra of at least a portion of the separator contacting with an electrode is set to a range of 0.1 to 0.5 &mgr;m.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: December 9, 2003
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Tsunemori Yoshida, Katsunori Sugita, Terumasa Yamamoto, Masahito Kaji
  • Publication number: 20030035992
    Abstract: A separator for fuel cells is provided, which has excellent electrical conductivity, mechanical strength and gas impermeability. The separator is a molded article of a carbon-phenol resin molding compound obtained by reacting a phenol with an aldehyde in the presence of a catalyst, while mixing them with a carbon powder. As the catalyst, it is possible to use at least one selected from tertiary amines, carbonates, hydroxides and oxides of alkali metals or alkali earth metals. It is preferred that a content of nitrogen constituent in the molding compound is 0.3 wt % or less, and a carbon content in the molding compound is within a range of 75 wt % to 97 wt %.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 20, 2003
    Inventors: Tsunemori Yoshida, Katsunori Sugita
  • Publication number: 20030036597
    Abstract: A carbon-phenol resin molding compound is provided, which is preferably used to obtain molded articles having high electrical and thermal conductivities as well as good mechanical strength. The resin molding compound is prepared by reacting a phenol with an aldehyde in the presence of a catalyst, while mixing them with a carbon powder such that a content of the carbon powder in the molding compound is 75 wt % or more. The catalyst is at least one selected from tertiary amines, carbonates, hydroxides and oxides of alkali metals or alkali earth metals.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 20, 2003
    Inventors: Isamu Ide, Masanobu Nishikawa, Hisato Higuchi, Tsunemori Yoshida, Katsunori Sugita
  • Publication number: 20020146613
    Abstract: A separator for a fuel cell made of graphite may be excellent in mechanical strength and gas impermeability as well as electrical properties. A separator for a fuel cell is produced from a molded body that is produced by filling a graphite powder whose surface is coated with resin in a molding die and by pressure-molding the powder. Such a molded body provides excellent mechanical strength, gas permeability, and electrical properties even if the content of resin is decreased to as low as 10 to 24 wt. %.
    Type: Application
    Filed: December 20, 2001
    Publication date: October 10, 2002
    Inventors: Kazuhiko Otawa, Shoji Kato, Katsunori Sugita
  • Patent number: 6027809
    Abstract: The present invention relates to a sealing material made of expanded graphite and to a method of producing it. In the sealing material made of expanded graphite of the present invention, a surface layer portion of an expanded graphite base material in which expanded graphite particles are pressurized is subjected to a blast process or the like, whereby the weight of the expanded graphite base material is reduced by a range of 0.5 to 3%, so that the diffraction peak of an X-ray diffraction of the exposed surface layer portion of the expanded graphite base material is in a range of 26.52.degree. to 26.48.degree.. In such a sealing material made of expanded graphite, the elongation rate and the tensile strength are improved, and also flexibility is remarkably improved. As a result, the product application range is extended and product productivity are improved.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: February 22, 2000
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Takahisa Ueda, Daisaburo Horii, Katsunori Sugita