Patents by Inventor Keiji Tsunoda

Keiji Tsunoda 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).

  • Combined tape player and tuner
    Patent number: D318665
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: July 30, 1991
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Hiroyuki Watanabe, Keiji Tsunoda, Manami Fujino, Yukio Iikura
  • Combined tape player and tuner
    Patent number: D319236
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: August 20, 1991
    Assignee: Teac Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Hiroyuki Watanabe, Keiji Tsunoda, Manami Fujino, Yukio Iikura
  • Streaming cassette tape drive
    Patent number: D322247
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: December 10, 1991
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Katsuhiro Takashima, Keiji Tsunoda
  • Streaming cassette tape drive
    Patent number: D322431
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: December 17, 1991
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Katsuhiro Takashima, Keiji Tsunoda
  • Streaming cassette tape drive
    Patent number: D322600
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: December 24, 1991
    Assignee: Teac Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Katsuhiro Takashima, Keiji Tsunoda
  • Streaming cassette tape drive
    Patent number: D322779
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: December 31, 1991
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Katsuhiro Takashima, Keiji Tsunoda
  • Streaming cassette tape drive
    Patent number: D322964
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: January 7, 1992
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Katsuhiro Takashima, Keiji Tsunoda
  • Combined audio mixer and tape recorder
    Patent number: D325204
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: April 7, 1992
    Assignee: Teac Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Haruki Takita, Katsuhiro Takashima, Keiji Tsunoda
  • Audio mixer
    Patent number: D325383
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: April 14, 1992
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Keiji Tsunoda
  • Audio mixer
    Patent number: D325580
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: April 21, 1992
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Keiji Tsunoda
  • Audio mixer
    Patent number: D325737
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: April 28, 1992
    Assignee: Teac Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Keiji Tsunoda
  • Combined audio mixer and tape recorder
    Patent number: D325910
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: May 5, 1992
    Assignee: Teac Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Katsuhiro Takashima, Keiji Tsunoda
  • Combined disk drive and streaming cassette tape drive
    Patent number: D331574
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: December 8, 1992
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Katsuhiro Takashima, Keiji Tsunoda
  • Synchronization controller for electric machines
    Patent number: D337753
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: July 27, 1993
    Assignee: Teac Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Katsuhiro Takashima, Keiji Tsunoda
  • Air cleaner
    Patent number: D338520
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: August 17, 1993
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Katsuhiro Takashima, Keiji Tsunoda
  • Streaming cassette tape drive
    Patent number: D338671
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: August 24, 1993
    Assignee: TEAC Corporation
    Inventors: Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Haruki Takita, Hiroyuki Watanabe, Keiji Tsunoda