Patents by Inventor Yoshiyuki Arai

Yoshiyuki Arai 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).

  • Method for forming titanium oxide film and titanium electrolytic capacitor
    Publication number: 20030010407
    Abstract: A compact type large capacity titanium electrolytic capacitor having minimized leakage current is provided by forming a stable oxide film having a large dielectric constant on a titanium surface, wherein a titanium substrate having a titanium oxide film thereon having a thickness of 50 nm or more is subjected to calcination in vacuum or an inert gas atmosphere, thereby reducing the thickness of said oxide film to less than 50 nm and the calcined surface of said metal titanium substrate is subjected to oxidation, thereby re-forming an oxide film on the surface of said metal titanium substrate. The metal titanium substrate having the re-formed oxide film obtained by such method can be used as an anode for a titanium electrolytic capacitor.
    Type: Application
    Filed: August 14, 2002
    Publication date: January 16, 2003
    Inventor: Yoshiyuki Arai
  • Printed wiring board, IC card module using the same, and method for producing IC card module
    Patent number: 6433285
    Abstract: The present invention provides a printed wiring board, an IC card module including the printed wiring board, and a method for fabricating the IC card module, for improving reliability of IC cards. The printed wiring board and the IC card module of the invention include: a base having a resin sealing region, clamped regions in a periphery zone of the resin sealing region clamped with a sealing mold, and non-clamped regions in the periphery zone; and terminals for external connection formed on the top surface of the base. The terminals are formed in a region other than any of the resin sealing region, the clamped regions, and the non-claimed regions.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: August 13, 2002
    Assignee: Matsushita Electronics Corporation
    Inventors: Kenji Maeda, Takashi Takata, Hiroki Naraoka, Hajime Homma, Shigeru Nonoyama, Yoshiyuki Arai, Yuichiro Yamada, Fumito Ito
  • Printed wiring board, IC card module using the same, and method for producing IC card module
    Publication number: 20010025721
    Abstract: The present invention provides a printed wiring board, an IC card module including the printed wiring board, and a method for fabricating the IC card module, for improving reliability of IC cards. The printed wiring board and the IC card module of the invention include: a base having a resin sealing region, clamped regions in a periphery zone of the resin sealing region clamped with a sealing mold, and non-clamped regions in the periphery zone; and terminals for external connection formed on the top surface of the base. The terminals are formed in a region other than any of the resin sealing region, the clamped regions, and the non-claimed regions.
    Type: Application
    Filed: December 14, 2000
    Publication date: October 4, 2001
    Inventors: Kenji Maeda, Takashi Takata, Hiroki Naraoka, Hajime Homma, Shigeru Nonoyama, Yoshiyuki Arai, Yuichiro Yamada, Fumito Ito
  • Process for preparing 4-oxopentadecanedioic acid
    Patent number: 4085274
    Abstract: 4-OXOPENTADECANEDIOIC ACID IS PREPARED BY OXIDIZING A .alpha.-CYCLODODEC-1-ENYLPROPIONIC ACID DERIVATIVE HAVING ONE OF THE FOLLOWING CHEMICAL FORMULAE AT ITS ETHYLENIC DOUBLE BOND WITH OZONE. ##STR1## The compound is useful as an intermediate for a musk perfume compound. The compound having the formula II is selectively prepared from cyclododecanone and di-alkyl succinate.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: April 18, 1978
    Assignee: Daicel Ltd.
    Inventors: Katuhiko Takahashi, Kyozo Arimoto, Yoshiyuki Arai, Tsuyoshi Morinaga, Yuji Nakazawa
  • 13-Oxabicyclo(10,4,0)hexadec-1(12)-en-14-one
    Patent number: 4005107
    Abstract: 13-Oxabicyclo(10.4.0)hexadec-1(12)-en-14-one is prepared by intramolecular cyclization of .beta.-(2-oxocyclododecyl) propionic acid, or derivatives thereof, in the presence of an acid catalyst or a basic catalyst. The compound is an important intermediate for producing musk perfume fragrance.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: January 25, 1977
    Assignee: Daicel, Ltd.
    Inventors: Tsuyoshi Morinaga, Yuji Nakazawa, Kyozo Arimoto, Katuhiko Takahashi, Yoshiyuki Arai