Patents by Inventor Tooru Matsui

Tooru Matsui 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: 8773825
    Abstract: An electrode pad is provided above a circuit block of a semiconductor integrated circuit device. A junction point A and a junction point B are provided on connection lines connecting electrode pads to an internal circuit and an electrostatic discharge (ESD) protection circuit. The junction point A and the junction point B are positioned at locations closer to the ESD protection circuit than to the electrode pads.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: July 8, 2014
    Assignee: Panasonic Corporation
    Inventors: Tooru Matsui, Masanori Hirofuji, Yoshifumi Kumashiro, Tatsuya Naruse, Hiroaki Segawa
  • Publication number: 20140170507
    Abstract: The present invention provides: a non-aqueous electrolyte for an electrochemical device, having ion conductivity sufficient for practical use and capable of improving energy density; a method for producing the same; and an electrochemical device using the same. The non-aqueous electrolyte for an electrochemical device includes a non-aqueous solvent and an alkaline earth metal chloride. The alkaline earth metal chloride is dissolved in an amount of 0.015 mol or more relative to 1 mol of the non-aqueous solvent. The total content of the non-aqueous solvent and the alkaline earth metal chloride is 70 mass % or more in the non-aqueous electrolyte.
    Type: Application
    Filed: March 11, 2013
    Publication date: June 19, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tooru Matsui, Zempachi Ogumi, Toshiro Hirai, Akiyoshi Nakata
  • Patent number: 8470475
    Abstract: A non-aqueous electrolyte secondary battery includes: a positive electrode capable of absorbing and desorbing lithium; a negative electrode capable of absorbing and desorbing lithium; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode includes a composite oxide represented by formula (1): LiNixM1-x-yLyO2 as an active material. The formula (1) satisfies 0.3?x?0.9 and 0?y?0.1. The element M is at least one selected from the group consisting of Co and Mn, and the element L is at least one selected from the group consisting of Mg, Al, Ti, Sr, Zn, B, Ca, Cr, Si, Ga, Sn, P, V, Sb, Nb, Ta, Mo, W, Zr, Y and Fe. The non-aqueous electrolyte includes a main solvent, a solute and vinyl ethylene carbonate.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: June 25, 2013
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Patent number: 8399126
    Abstract: A non-aqueous electrolyte is provided that includes a non-aqueous solvent and an electrolyte salt, wherein the non-aqueous solvent contains a fluorinated ether (1) represented by the following Formula: HCF2CF2CF2CH2—O—CF2CF2H (1). This non-aqueous electrolyte has good wettability to a polyolefin separator, can provide a battery with excellent load characteristics for a long period, does not easily decompose in the battery under high-temperature storage, and causes little gas generation due to decomposition. Furthermore, a non-aqueous electrolyte secondary battery is provided that includes a positive electrode, a negative electrode, a separator, and the above-described non-aqueous electrolyte.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Tooru Matsui, Tetsuo Nanno
  • Patent number: 8399127
    Abstract: A nonaqueous electrolyte secondary battery, comprising a positive electrode having a positive-electrode active material layer reversibly inserting and extracting lithium ions on a positive-electrode current collector, a negative electrode having a negative-electrode active material layer reversibly inserting and extracting lithium ions on a negative-electrode current collector, and a nonaqueous electrolyte solution, wherein at least one of the positive and negative electrodes has a film on the surface and at least one of the positive electrode, the negative electrode and the nonaqueous electrolyte solution contains a nitrogen-containing cyclic compound. Such a nonaqueous electrolyte secondary battery is superior in high-temperature storage stability allowing preservation of favorable discharge rate even after high-temperature storage.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Publication number: 20120287541
    Abstract: An electrode pad is provided above a circuit block of a semiconductor integrated circuit device. A junction point A and a junction point B are provided on connection lines connecting electrode pads to an internal circuit and an electrostatic discharge (ESD) protection circuit. The junction point A and the junction point B are positioned at locations closer to the ESD protection circuit than to the electrode pads.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 15, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Tooru MATSUI, Masanori HIROFUJI, Yoshifumi KUMASHIRO, Tatsuya NARUSE, Hiroaki SEGAWA
  • Patent number: 8221922
    Abstract: A non-aqueous electrolyte secondary battery including: a positive electrode that contains a transition metal oxide capable of absorbing and desorbing lithium ions; a negative electrode that is capable of absorbing and desorbing lithium ions; a porous film that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one selected from inorganic oxide and polyamide is contained in the porous film, and 5 to 15 vol % of ethylene carbonate is contained in a non-aqueous solvent that is contained in the non-aqueous electrolyte.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: July 17, 2012
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Patent number: 8187744
    Abstract: A non-aqueous electrolyte secondary battery is produced using a non-aqueous electrolyte including: a non-aqueous solvent that primarily contains a solvent mixture of ethylene carbonate and propylene carbonate and includes a fluorine-substituted ether having a divalent group represented by a formula: —CFX—CH(CH3)—O—, where X is a hydrogen atom or fluorine atom, in a molecule thereof; and a lithium salt that is dissolved in the non-aqueous solvent. The non-aqueous electrolyte has favorable wettability towards a polyolefin separator, and improves the cycle characteristics and the load characteristics of the non-aqueous electrolyte secondary battery.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 29, 2012
    Assignee: Panasonic Corporation
    Inventors: Tooru Matsui, Tetsuo Nanno, Hiroshi Yoshizawa
  • Patent number: 8148017
    Abstract: An electrochemical energy storage device includes a negative electrode which contains a carbon material and has a negative electrode potential of 1.4 V or less relative to a lithium reference when being charged, and a non-aqueous electrolyte solution prepared by dissolving a lithium salt, an ammonium salt, and at least one kind of fluorinated benzene selected among hexafluorobenzene, pentafluorobenzene, 1,2,3,4-tetrafluorobenzene, 1,2,3,5-tetrafluorobenzene, 1,2,4,5-tetrafluorobenzene and 1,2,3-trifluorobenzene, in a non-aqueous solvent.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: April 3, 2012
    Assignee: Panasonic Corporation
    Inventors: Tooru Matsui, Masaki Deguchi, Hiroshi Yoshizawa
  • Patent number: 8067119
    Abstract: A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including an active material absorbing and desorbing lithium ions, a negative electrode including an active material absorbing and desorbing lithium ions, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The separator includes a material containing a substituent group with electron-withdrawing property. The non-aqueous electrolyte includes a non-aqueous solvent and a solute dissolved therein, and the non-aqueous solvent includes at least one selected from the group consisting of a fluorine-containing aromatic solvent, a fluorine-containing cyclic carbonic acid ester, and a fluorine-containing cyclic carboxylic acid ester.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: November 29, 2011
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Patent number: 8067120
    Abstract: The non-aqueous electrolyte secondary battery of the present invention includes a positive electrode containing a lithium-containing transition metal oxide as a positive electrode active material, a negative electrode, a separator interposed between the positive electrode and the negative electrode and a non-aqueous electrolyte. The non-aqueous electrolyte includes a non-aqueous solvent and a solute dissolved therein, and the non-aqueous solvent includes a solvent having an electron-withdrawing substituent. The solvent having an electron-withdrawing substituent includes at least one selected from the group consisting of a sulfonic solvent, a nitrile solvent, a ketonic solvent, a fluorine-containing solvent, a chlorine-containing solvent and a carboxylic acid ester solvent. The separator includes a material containing an electron-withdrawing substituent or an atom having an unshared electron pair.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: November 29, 2011
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Patent number: 7998615
    Abstract: The present invention relates to a nonaqueous electrolyte for electrochemical devices, and to electric double-layer capacitor and secondary battery using the said nonaqueous electrolyte. The nonaqueous electrolyte according to the present invention comprises a room temperature molten salt and a fluorohydrocarbon. The nonaqueous electrolyte is flame resistant and can suppress the rise in its viscosity. Therefore, high quality electrochemical devices can be obtained by using the nonaqueous electrolyte. The electric double-layer capacitor according to the present invention comprises a pair of polarizable electrode plates, a separator interposed between the pair of electrode plates, and the inventive nonaqueous electrolyte.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: August 16, 2011
    Assignee: Panasonic Corporation
    Inventors: Tooru Matsui, Masaki Deguchi, Hiroshi Yoshizawa
  • Patent number: 7879489
    Abstract: To provide a high-capacity non-aqueous electrolyte secondary battery that exhibits satisfactory charge/discharge cycle characteristics even in a high temperature environment. The battery has: a positive electrode including a nickel-containing lithium composite oxide; a negative electrode capable of charging and discharging; a separator interposed between the positive and negative electrodes; and a non-aqueous electrolyte containing a non-aqueous solvent and a solute dissolved therein. The non-aqueous electrolyte contains a fluorine atom-containing aromatic compound. The nickel-containing lithium composite oxide is represented by, for example, LiNixM1-x-yLyO2 where element M is at least one selected from the group consisting of Co and Mn; element L is at least one selected from the group consisting of Al, Sr, Y, Zr, Ta, Mg, Ti, Zn, B, Ca, Cr, Si, Ga, Sn, P, V, Sb, Nb, Mo, W and Fe; and x and y satisfy 0.1?x?1 and 0?y?0.1.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: February 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Patent number: 7851093
    Abstract: A non-aqueous electrolyte for a secondary battery, including a non-aqueous solvent in which a solute is dissolved, a first additive and a second additive, wherein the first additive is a vinyl monomer having an electron donating group, the second additive is a carbonic acid ester having at least one carbon-carbon unsaturated bond, and an e value, which is a polarization factor of the vinyl monomer having an electron donating group, is a negative value.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: December 14, 2010
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Publication number: 20100285367
    Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery includes an element capable of forming an intermetallic compound with lithium. The negative electrode active material has a water content of 0 to 0.04 molecule per atom of the element. The non-aqueous electrolyte secondary battery includes a negative electrode including the negative electrode active material, a positive electrode, a separator separating the negative electrode and the positive electrode, and a non-aqueous electrolyte.
    Type: Application
    Filed: April 27, 2010
    Publication date: November 11, 2010
    Inventors: Tooru MATSUI, Masaya Ugaji
  • Publication number: 20100124708
    Abstract: A non-aqueous electrolyte is provided that includes a non-aqueous solvent and an electrolyte salt, wherein the non-aqueous solvent contains a fluorinated ether (1) represented by the following Formula: HCF2CF2CF2CH2—O—CF2CF2H (1). This non-aqueous electrolyte has good wettability to a polyolefin separator, can provide a battery with excellent load characteristics for a long period, does not easily decompose in the battery under high-temperature storage, and causes little gas generation due to decomposition. Furthermore, a non-aqueous electrolyte secondary battery is provided that includes a positive electrode, a negative electrode, a separator, and the above-described non-aqueous electrolyte.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 20, 2010
    Inventors: Tooru Matsui, Tetsuo Nanno
  • Patent number: 7709157
    Abstract: The present invention provides a safe non-aqueous electrolyte secondary battery with characteristics analogous to those of a conventional battery by minimizing battery expansion that causes damage to a device during high temperature exposure or storage. The non-aqueous electrolyte secondary battery comprises: (a) a chargeable and dischargeable positive electrode; (b) a negative electrode capable of absorbing and desorbing lithium; (c) a separator for preventing direct electron transfer between the positive electrode and the negative electrode; and (d) an non-aqueous electrolyte; the non-aqueous electrolyte comprising a non-aqueous solvent and a solute, the non-aqueous solvent comprising a lactone, the solute comprising lithium bis(fluorosulfonyl)imide represented by the formula (1): (F—O2S—N—SO2—F)Li.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: May 4, 2010
    Assignee: Panasonic Corporation
    Inventors: Kumiko Mie, Hizuru Koshina, Tooru Matsui, Masaki Deguchi
  • Publication number: 20100040949
    Abstract: A coating liquid for use in formation of a positive electrode for a lithium secondary battery of the present invention includes a large-particle-size active material having an average particle diameter of 1 to 20 ?m and a small-particle-size active material having an average particle diameter of 5 to 100 nm, such that the blending ratio by volume between two materials is 90:10 to 50:50, and the average particle diameter ratio (the average particle diameter of large-particle-size active material/the average particle diameter of small-particle-size active material) is from 50 to 500. The coating liquid is excellent in storage stability over a long period of time and makes dense packing of active material possible, and therefore a positive electrode produced with the use of the coating liquid of the present invention can provide a lithium secondary battery having a high energy density and a high capacity.
    Type: Application
    Filed: November 21, 2008
    Publication date: February 18, 2010
    Inventors: Tetsuo Nanno, Tooru Matsui, Hiroshi Yoshizawa
  • Publication number: 20100015533
    Abstract: A non-aqueous electrolyte secondary battery including: a positive electrode that contains a transition metal oxide capable of absorbing and desorbing lithium ions; a negative electrode that is capable of absorbing and desorbing lithium ions; a porous film that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one selected from inorganic oxide and polyamide is contained in the porous film, and 5 to 15 vol % of ethylene carbonate is contained in a non-aqueous solvent that is contained in the non-aqueous electrolyte.
    Type: Application
    Filed: April 10, 2008
    Publication date: January 21, 2010
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshikawa
  • Publication number: 20090325076
    Abstract: A non-aqueous electrolyte secondary battery is produced using a non-aqueous electrolyte including: a non-aqueous solvent that primarily contains a solvent mixture of ethylene carbonate and propylene carbonate and includes a fluorine-substituted ether having a divalent group represented by a formula: —CFX—CH(CH3)—O—, where X is a hydrogen atom or fluorine atom, in a molecule thereof; and a lithium salt that is dissolved in the non-aqueous solvent. The non-aqueous electrolyte has favorable wettability towards a polyolefin separator, and improves the cycle characteristics and the load characteristics of the non-aqueous electrolyte secondary battery.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 31, 2009
    Inventors: Tooru Matsui, Tetsuo Nanno, Hiroshi Yoshizawa