Patents by Inventor Katsumasa Kawabata

Katsumasa Kawabata 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: 20240120541
    Abstract: Please substitute the new Abstract submitted herewith for the original Abstract: According to a nonaqueous electrolytic solution containing: a compound represented by the General Formula (1); a solute; and a nonaqueous organic solvent, a nonaqueous electrolytic solution battery, and a compound represented by General Formula (1), a nonaqueous electrolytic solution and a nonaqueous electrolytic solution battery having a low initial resistance value, and a compound that can be suitably used for the above nonaqueous electrolytic solution are provided,
    Type: Application
    Filed: January 14, 2022
    Publication date: April 11, 2024
    Inventors: Ryosuke TERADA, Wataru KAWABATA, Katsumasa MORI, Takayoshi MORINAKA, Mikihiro TAKAHASHI
  • Patent number: 11667061
    Abstract: The invention provides a method of forming porous polyurethane polishing pad that includes feeding liquid polyurethane onto a web sheet with a doctor blade while back tensioning the web. Coagulating liquid polyurethane onto the web sheet forms a two-layer substrate. The two-layer substrate has a porous matrix wherein the porous matrix has large pores extending upward from a base surface and open to an upper surface. Spring-arm sections connect lower and upper sections of the large pores.
    Type: Grant
    Filed: April 18, 2020
    Date of Patent: June 6, 2023
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Wei-Wen Tsai, Katsumasa Kawabata, Hui Bin Huang, Akane Uehara, Yosuke Takei
  • Publication number: 20210323116
    Abstract: The invention provides a porous polyurethane polishing pad that includes a porous matrix having large pores that extend upward from a base surface and open to an upper surface. The large pores extend to the top polishing surface and have lower and upper sections with a vertical orientation. The lower and upper sections are offset in a horizontal direction. Middle-sized pores with a columnar shape and a vertical orientation originate adjacent the middle sections and small pores with a columnar shape and a vertical orientation originate between the middle-sized pores. The pores combine for increasing compressibility of the polishing pad and contact area of the top polishing surface during polishing.
    Type: Application
    Filed: April 18, 2020
    Publication date: October 21, 2021
    Inventors: Wei-Wen TSAI, Katsumasa KAWABATA, Hui Bin HUANG, Akane UEHARA, Yosuke TAKEI
  • Publication number: 20210323115
    Abstract: The invention provides a porous polyurethane polishing pad that includes a porous matrix. The matrix has large pores that extend upward from a base surface and open to an upper surface. The large pores are interconnected with tertiary pores, a portion of the large pores is open to a top polishing surface and at least a portion of the large pores extend to the top polishing surface. Spring-arm sections connect lower and upper sections of the large pores. The spring-arm sections all are in a same horizontal direction as measured from the vertical orientation and they combine for increasing compressibility of the polishing pad and contact area of the top polishing surface during polishing.
    Type: Application
    Filed: April 18, 2020
    Publication date: October 21, 2021
    Inventors: Wei-Wen TSAI, Katsumasa KAWABATA, Hui Bin HUANG, Akane UEHARA, Yosuke TAKEI
  • Publication number: 20210323202
    Abstract: The invention provides a method of forming porous polyurethane polishing pad that includes feeding liquid polyurethane onto a web sheet with a doctor blade while back tensioning the web. Coagulating liquid polyurethane onto the web sheet forms a two-layer substrate. The two-layer substrate has a porous matrix wherein the porous matrix has large pores extending upward from a base surface and open to an upper surface. Spring-arm sections connect lower and upper sections of the large pores.
    Type: Application
    Filed: April 18, 2020
    Publication date: October 21, 2021
    Inventors: Wei-Wen TSAI, Katsumasa KAWABATA, Hui Bin HUANG, Akane UEHARA, Yosuke TAKEI
  • Patent number: 10259099
    Abstract: The method forms a porous polyurethane polishing pad by coagulating thermoplastic polyurethane to create a porous matrix having large pores extending upward from a base surface and open to an upper surface. The large pores are interconnected with small pores. Heating a press to temperature below or above the softening onset temperature of the thermoplastic polyurethane forms a series of pillows. Plastic deforming side walls of the pillow structures forms downwardly sloped side walls. The downwardly sloped side walls extend from all sides of the pillow structures. The large pores open to the downwardly sloped sidewalls are less vertical than the large pores open to the top polishing surface and are offset 10 to 60 degrees from the vertical direction.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: April 16, 2019
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Koichi Yoshida, Kazutaka Miyamoto, Katsumasa Kawabata, Henry Sanford-Crane, Hui Bin Huang, George C. Jacob, Shuiyuan Luo
  • Patent number: 10215345
    Abstract: A battery holder includes storage chamber for storing a battery. The storage chamber includes: opening end surface through which battery can be taken in or out; and upper surface section, lower surface section, and first and second side-surface sections (opposing each other) for holding the battery. Projection is formed on the inner wall of first side-surface section at a portion including the end on the opening end surface side. Outward deformable flexible section is formed on second side-surface section at a portion including the end on the opening end surface side. Slit that extends from third side-surface section opposite to the opening end surface toward the opening end surface and stops at the position corresponding to a part of the battery is formed in upper surface section and/or lower surface section. The end of the flexible section is located closer to the third side-surface section than the projection.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: February 26, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Miho Shirakawa, Katsumasa Kawabata
  • Patent number: 10106662
    Abstract: The porous polyurethane polishing pad includes a porous matrix having large pores that extend upward from a base surface and open to an upper surface. The large pores are interconnected with small pores. The porous matrix is a blend of two thermoplastic polymers. The first thermoplastic polyurethane has by molecular percent, 45 to 60 adipic acid, 10 to 30 MDI-ethylene glycol and 15 to 35 MDI and an Mn of 40,000 to 60,000 and a Mw of 125,000 to 175,000 and an Mw to Mn ratio of 2.5 to 4 The second thermoplastic polyurethane has by molecular percent, 40 to 50 adipic acid, 20 to 40 adipic acid butane diol, 5 to 20 MDI-ethylene glycol and 5 to 25 MDI and an Mn of 60,000 to 80,000 and a Mw of 125,000 to 175,000 and an Mw to Mn ratio of 1.5 to 3.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 23, 2018
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Shuiyuan Luo, George C. Jacob, Henry Sanford-Crane, Koichi Yoshida, Katsumasa Kawabata, Shusuke Kitawaki, Shogo Takahashi, Yosuke Takei
  • Patent number: 9925637
    Abstract: The porous polyurethane polishing pad includes a porous polyurethane matrix having large pores extending upward from a base surface and open to a polishing surface. A series of pillow structures is formed from the porous matrix that include the large pores and the small pores. The pillow structures have a downward surface extending from the top polishing surface for forming downwardly sloped side walls at an angle from 30 to 60 degrees from the polishing surface. The large pores open to the downwardly sloped sidewalls and are less vertical than the large pores. The large pores are offset 10 to 60 degrees from the vertical direction in a direction more orthogonal to the sloped sidewalls.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 27, 2018
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Koichi Yoshida, Kazutaka Miyamoto, Katsumasa Kawabata, Henry Sanford-Crane, Hui Bin Huang, George C. Jacob, Shuiyuan Luo
  • Publication number: 20180036860
    Abstract: The method forms a porous polyurethane polishing pad by coagulating thermoplastic polyurethane to create a porous matrix having large pores extending upward from a base surface and open to an upper surface. The large pores are interconnected with small pores. Heating a press to temperature below or above the softening onset temperature of the thermoplastic polyurethane forms a series of pillows. Plastic deforming side walls of the pillow structures forms downwardly sloped side walls. The downwardly sloped side walls extend from all sides of the pillow structures. The large pores open to the downwardly sloped sidewalls are less vertical than the large pores open to the top polishing surface and are offset 10 to 60 degrees from the vertical direction.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 8, 2018
    Inventors: Koichi Yoshida, Kazutaka Miyamoto, Katsumasa Kawabata, Henry Sanford-Crane, Hui Bin Huang, George C. Jacob, Shuiyuan Luo
  • Publication number: 20180037706
    Abstract: The porous polyurethane polishing pad includes a porous matrix having large pores that extend upward from a base surface and open to an upper surface. The large pores are interconnected with small pores. The porous matrix is a blend of two thermoplastic polymers. The first thermoplastic polyurethane has by molecular percent, 45 to 60 adipic acid, 10 to 30 MDI-ethylene glycol and 15 to 35 MDI and an Mn of 40,000 to 60,000 and a Mw of 125,000 to 175,000 and an Mw to Mn ratio of 2.5 to 4 The second thermoplastic polyurethane has by molecular percent, 40 to 50 adipic acid, 20 to 40 adipic acid butane diol, 5 to 20 MDI-ethylene glycol and 5 to 25 MDI and an Mn of 60,000 to 80,000 and a Mw of 125,000 to 175,000 and an Mw to Mn ratio of 1.5 to 3.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 8, 2018
    Inventors: Shuiyuan Luo, George C. Jacob, Henry Sanford-Crane, Koichi Yoshida, Katsumasa Kawabata, Shusuke Kitawaki, Shogo Takahashi, Yosuke Takei
  • Publication number: 20180036862
    Abstract: The porous polyurethane polishing pad includes a porous polyurethane matrix having large pores extending upward from a base surface and open to a polishing surface. A series of pillow structures is formed from the porous matrix that include the large pores and the small pores. The pillow structures have a downward surface extending from the top polishing surface for forming downwardly sloped side walls at an angle from 30 to 60 degrees from the polishing surface. The large pores open to the downwardly sloped sidewalls and are less vertical than the large pores. The large pores are offset 10 to 60 degrees from the vertical direction in a direction more orthogonal to the sloped sidewalls.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 8, 2018
    Inventors: Koichi Yoshida, Kazutaka Miyamoto, Katsumasa Kawabata, Henry Sanford-Crane, Hui Bin Huang, George C. Jacob, Shuiyuan Luo
  • Publication number: 20160377241
    Abstract: A battery holder includes storage chamber for storing a battery. The storage chamber includes: opening end surface through which battery can be taken in or out; and upper surface section, lower surface section, and first and second side-surface sections (opposing each other) for holding the battery. Projection is formed on the inner wall of first side-surface section at a portion including the end on the opening end surface side. Outward deformable flexible section is formed on second side-surface section at a portion including the end on the opening end surface side. Slit that extends from third side-surface section opposite to the opening end surface toward the opening end surface and stops at the position corresponding to a part of the battery is formed in upper surface section and/or lower surface section. The end of the flexible section is located closer to the third side-surface section than the projection.
    Type: Application
    Filed: February 4, 2015
    Publication date: December 29, 2016
    Inventors: MIHO SHIRAKAWA, KATSUMASA KAWABATA
  • Patent number: 9520582
    Abstract: A compartment accommodates a button cell. The compartment includes an opening side through which the button cell is loaded or ejected from a side surface of the buttons cell. The compartment includes an upper side, a lower side, and lateral sides for holding flat surfaces and the side surface of the button cell. The compartment includes elastic pieces for biasing at least one of the flat surfaces or the side surface of the button cell. A slit is disposed on at least one of the upper side, the lower side, or the lateral sides. The slit extends from a side opposite to the opening side toward the opening side. The slit extends to a part of the button cell.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: December 13, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Katsumasa Kawabata, Miho Shirakawa
  • Patent number: 8980749
    Abstract: A method for polishing a silicon wafer is provided, comprising: providing a silicon wafer; providing a polishing pad having a polishing layer which is the reaction product of raw material ingredients, including: a polyfunctional isocyanate; and, a curative package; wherein the curative package contains an amine initiated polyol curative and a high molecular weight polyol curative; wherein the polishing layer exhibits a density of greater than 0.4 g/cm3; a Shore D hardness of 5 to 40; an elongation to break of 100 to 450%; and, a cut rate of 25 to 150 ?m/hr; and, wherein the polishing layer has a polishing surface adapted for polishing the silicon wafer; and, creating dynamic contact between the polishing surface and the silicon wafer.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: March 17, 2015
    Assignees: Rohm and Haas Electronic Materials CMP Holdings, Inc., Nitta Haas Incorporated
    Inventors: Yasuyuki Itai, Bainian Qian, Hiroyuki Nakano, David B. James, Naoko Kawai, Katsumasa Kawabata, Koichi Yoshida, Kazutaka Miyamoto, James Murnane, Fengji Yeh, Marty W. DeGroot
  • Publication number: 20140286001
    Abstract: A compartment accommodates a button cell. The compartment includes an opening side through which the button cell is loaded or ejected from a side surface of the buttons cell. The compartment includes an upper side, a lower side, and lateral sides for holding flat surfaces and the side surface of the button cell. The compartment includes elastic pieces for biasing at least one of the flat surfaces or the side surface of the button cell. A slit is disposed on at least one of the upper side, the lower side, or the lateral sides. The slit extends from a side opposite to the opening side toward the opening side. The slit extends to a part of the button cell.
    Type: Application
    Filed: November 30, 2012
    Publication date: September 25, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Katsumasa Kawabata, Miho Shirakawa
  • Patent number: D554733
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: November 6, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsumasa Kawabata, Akihiko Kotani
  • Patent number: D827891
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: September 4, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Katsumasa Kawabata, Yuji Wada, Hiroshi Fujita