Patents by Inventor Tetsuo Mitani

Tetsuo Mitani 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: 9903669
    Abstract: Provided is a heat exchange element that suppresses an increase in air-flow resistance by suppressing deflection of a partition member caused by a change in temperature and humidity. The unit constituent members are stacked, each of which is formed of partition members that have heat-transfer properties and moisture permeability, and spacing members that hold the partition members. A primary air flow that passes along an upper-surface side of the partition member and a secondary air flow that passes along an undersurface side of the partition member cross each other so as to exchange heat and moisture via the partition member. The spacing member includes: spacing ribs that maintain the spacing between the partition members; and deflection suppressing ribs that have a height smaller than the spacing ribs so as to suppress deflection of the partition members.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: February 27, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuichi Ishimaru, Hajime Sotokawa, Masaru Takada, Takanori Imai, Mitsuhiko Ohira, Fumiaki Baba, Yuichi Matsuo, Shinya Tokizaki, Koji Kise, Masaru Shinozaki, Tetsuo Mitani
  • Patent number: 9027699
    Abstract: A speaker diaphragm contains a material obtained by adding a cycloolefin polymer resin to a carbon fiber-reinforced liquid crystal polymer. The speaker diaphragm having high sound velocity, a speaker, and a production method of the speaker diaphragm can thereby be obtained.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: May 12, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsuo Mitani, Osamu Murakami, Masashi Hara, Akihiro Fujita
  • Publication number: 20150075758
    Abstract: Provided is a heat exchange element that suppresses an increase in air-flow resistance by suppressing deflection of a partition member caused by a change in temperature and humidity. The unit constituent members are stacked, each of which is formed of partition members that have heat-transfer properties and moisture permeability, and spacing members that hold the partition members. A primary air flow that passes along an upper-surface side of the partition member and a secondary air flow that passes along an undersurface side of the partition member cross each other so as to exchange heat and moisture via the partition member. The spacing member includes: spacing ribs that maintain the spacing between the partition members; and deflection suppressing ribs that have a height smaller than the spacing ribs so as to suppress deflection of the partition members.
    Type: Application
    Filed: June 13, 2012
    Publication date: March 19, 2015
    Applicant: Mitsubishi Electric Corporatom
    Inventors: Yuichi Ishimaru, Hajime Sotokawa, Masaru Takada, Takanori Imai, Mitsuhiko Ohira, Fumiaki Baba, Yuichi Matsuo, Shinya Tokizaki, Koji Kise, Masaru Shinozaki, Tetsuo Mitani
  • Publication number: 20110284317
    Abstract: A speaker diaphragm (1) contains a material obtained by adding a cycloolefin polymer resin to a carbon fiber-reinforced liquid crystal polymer. The speaker diaphragm (1) having high sound velocity, a speaker (5), and a production method of the speaker diaphragm (1) can thereby be obtained.
    Type: Application
    Filed: February 19, 2010
    Publication date: November 24, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuo Mitani, Osamu Murakami, Masashi Hara, Akihiro Fujita
  • Patent number: 7974073
    Abstract: An electric double-layer capacitor includes: a positive electrode containing a carbon material; a negative electrode containing a carbon material and a titanium oxide; and an electrolytic solution containing an ammonium salt. A weight ratio of the titanium oxide to the carbon material contained in the negative electrode is 2% by weight or more but not more than 50% by weight.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: July 5, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daigo Takemura, Kenro Mitsuda, Tetsuo Mitani, Kazuki Kubo
  • Patent number: 7636232
    Abstract: A porous electrolytic solution reservoir which is capable of being impregnated with an electrolytic solution is provided in an exterior case so as to make contact with a separator. The average diameter of the pores in the electrolytic solution reservoir is greater than the average diameter of pores in the separator. The electrolytic solution reservoir is impregnated with a predetermined amount of electrolytic solution, so that the occupation ratio of electrolytic solution within the pores in the separator becomes 50% or more when fully charged, and the occupation ratio of electrolytic solution within the pores in the electrolytic solution reservoir becomes 100% or less when fully discharged.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: December 22, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenro Mitsuda, Yoshiyuki Takuma, Daigo Takemura, Kazuki Kubo, Tetsuo Mitani, Fumiyuki Miyamoto, Takashi Masuda
  • Publication number: 20090059473
    Abstract: A porous electrolytic solution reservoir which is capable of being impregnated with an electrolytic solution is provided in an exterior case so as to make contact with a separator. The average diameter of the pores in the electrolytic solution reservoir is greater than the average diameter of pores in the separator. The electrolytic solution reservoir is impregnated with a predetermined amount of electrolytic solution, so that the occupation ratio of electrolytic solution within the pores in the separator becomes 50% or more when fully charged, and the occupation ratio of electrolytic solution within the pores in the electrolytic solution reservoir becomes 100% or less when fully discharged.
    Type: Application
    Filed: October 29, 2008
    Publication date: March 5, 2009
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Kenro Mitsuda, Yoshiyuki Takuma, Daigo Takemura, Kazuki Kubo, Tetsuo Mitani, Fumiyuki Miyamoto, Takashi Masuda
  • Patent number: 7463478
    Abstract: A porous electrolytic solution reservoir which is capable of being impregnated with an electrolytic solution is provided in an exterior case so as to make contact with a separator. The average diameter of the pores in the electrolytic solution reservoir is greater than the average diameter of pores in the separator. The electrolytic solution reservoir is impregnated with a predetermined amount of electrolytic solution, so that the occupation ratio of electrolytic solution within the pores in the separator becomes 50% or more when fully charged, and the occupation ratio of electrolytic solution within the pores in the electrolytic solution reservoir becomes 100% or less when fully discharged.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: December 9, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenro Mitsuda, Yoshiyuki Takuma, Daigo Takemura, Kazuki Kubo, Tetsuo Mitani, Fumiyuki Miyamoto, Takashi Masuda
  • Publication number: 20080112112
    Abstract: An electric double-layer capacitor includes: a positive electrode containing a carbon material; a negative electrode containing a carbon material and a titanium oxide; and an electrolytic solution containing an ammonium salt. A weight ratio of the titanium oxide to the carbon material contained in the negative electrode is 2% by weight or more but not more than 50% by weight.
    Type: Application
    Filed: October 9, 2007
    Publication date: May 15, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Daigo TAKEMURA, Kenro Mitsuda, Tetsuo Mitani, Kazuki Kubo
  • Publication number: 20060238957
    Abstract: A porous electrolytic solution reservoir which is capable of being impregnated with an electrolytic solution is provided in an exterior case so as to make contact with a separator. The average diameter of the pores in the electrolytic solution reservoir is greater than the average diameter of pores in the separator. The electrolytic solution reservoir is impregnated with a predetermined amount of electrolytic solution, so that the occupation ratio of electrolytic solution within the pores in the separator becomes 50% or more when fully charged, and the occupation ratio of electrolytic solution within the pores in the electrolytic solution reservoir becomes 100% or less when fully discharged.
    Type: Application
    Filed: April 3, 2006
    Publication date: October 26, 2006
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenro Mitsuda, Yoshiyuki Takuma, Daigo Takemura, Kazuki Kubo, Tetsuo Mitani, Fumiyuki Miyamoto, Takashi Masuda
  • Patent number: 6727021
    Abstract: A multilayer electrode battery which restrains temperature rise produced by an internal short circuit and has a compact size and a large battery capacity. The battery is a multilayer electrode battery which uses an electrode formed by providing positive temperature coefficient characteristics to at least one of an active material and an electronic conductive material in contact with the active material, and a collector of at least one of a positive electrode and a negative electrode, and which has a plurality of layers of multilayer electrode bodies.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: April 27, 2004
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hisashi Shiota, Hiroaki Urushibata, Tetsuo Mitani, Fusaoki Uchikawa
  • Publication number: 20020058182
    Abstract: An electrode in which an active material 11 or 7, an electron conducting material 12 or a current collector 5 or 6 has PTC characteristics is used as at least one of positive and negative electrodes 1 and 2.
    Type: Application
    Filed: December 31, 2001
    Publication date: May 16, 2002
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Hisashi Shiota, Hiroaki Urushibata, Tetsuo Mitani, Fusaoki Uchikawa
  • Patent number: 6346345
    Abstract: An electrode in which an active material 11 or 7, an electron conducting material 12 or a current collector 5 or 6 has PTC characteristics is used as at least one of positive and negative electrodes 1 and 2.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: February 12, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hisashi Shiota, Hiroaki Urushibata, Tetsuo Mitani, Fusaoki Uchikawa
  • Publication number: 20010041285
    Abstract: An electrode in which an active material 11 or 7, an electron conducting material 12 or a current collector 5 or 6 has PTC characteristics is used as at least one of positive and negative electrodes 1 and 2.
    Type: Application
    Filed: December 24, 1997
    Publication date: November 15, 2001
    Inventors: HISASHI SHIOTA, HIROAKI URUSHIBATA, TETSUO MITANI, FUSAOKI UCHIKAWA
  • Patent number: 5610219
    Abstract: A resin compound for molding precision parts containing 20 to 40% by weight of at least one of polyphenylene sulfide and aromatic polyester thermotropic liquid crystalline polymer, 15 to 25% by weight of whisker and 40 to 60% by weight of spherical fine particles, wherein the total content of the whisker and the spherical fine particles is 60 to 80% by weight, and a resin compound for molding precision parts containing 20 to 40% by weight of at least one of polyphenylene sulfide and aromatic polyester thermotropic liquid crystalline polymer, 5 to 25% by weight of whisker, 40 to 75% by weight of spherical fine particles and 0.5 to 3% by weight of silane coupling agent, wherein the total content of the whisker and the spherical fine particles is 60 to 80% by weight are disclosed. Mechanical strength of the resin compounds can be increased without the impairment of dimensional precision, surface smoothness and low coefficient of thermal expansion.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: March 11, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shiro Takatani, Tetsuo Mitani, Fumiaki Baba, Tsutomu Ohta, Kazuo Nakamura
  • Patent number: 4934185
    Abstract: A device for measuring the adhesive or shear strength of a coated film comprising: a fixed member which can be fixed on an object to be measured; a guide member fixed on the fixed member; a moving member which moves along the guide member in parallel with a measuring surface of the object to be measured; a cutting blade supporting member; a cutting blade mounted on one end part of the cutting blade supporting member and press-contacted on the measuring surface; a mechanism for adjusting the press-contacting force of the cutting blade onto the measuring surface; a mechanism for adjusting a pressure contacting angle of the cutting blade; and a pressure detector for detecting cutting resistance generated by the cutting blade. The device also comprises a vertical displacement detector for detecting a vertical displacement with respect to the measuring surface of the object to be measured.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: June 19, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ituo Nishiyama, Tetsuo Mitani, Masazi Kozono
  • Patent number: 4687801
    Abstract: A resin composition which consists essentially of a thermoplastic resin, in which are included an alkali metal salt, and at least one kind of substances selected from the group consisting of vinylidene fluoride resin and dipolar aprotic solvents.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: August 18, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuo Mitani, Fumiaki Baba, Katsuyoshi Iisaka