TY

Tsutomu Yamaguchi

SC Sanyo Electric Co.: 25 patents #109 of 6,347Top 2%
KS Kawai Gakki Seisakusho: 19 patents #2 of 198Top 2%
Mitsubishi Electric: 12 patents #2,296 of 25,717Top 9%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
SO Somar: 3 patents #54 of 174Top 35%
TC Toyo Jozo Company: 1 patents #88 of 154Top 60%
Xerox: 1 patents #5,237 of 8,622Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
SO Sony: 1 patents #17,262 of 25,231Top 70%
CC Casio Hitachi Mobile Communications Co.: 1 patents #35 of 109Top 35%
SC Shinko Electric Industries Co.: 1 patents #134 of 267Top 55%
DK Denki Kagaku Kogyo: 1 patents #291 of 655Top 45%
HM Hitachi Maxell: 1 patents #659 of 1,211Top 55%
TC Tec Co.: 1 patents #45 of 177Top 30%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
Overall (All Time): #27,373 of 4,157,543Top 1%
72
Patents All Time

Issued Patents All Time

Showing 51–72 of 72 patents

Patent #TitleCo-InventorsDate
6577880 Radio communication method and radio communication system Kazuhito Ishida, Seiko Shimogama, Toshiaki Kurokawa 2003-06-10
6218890 Switching circuit device and semiconductor device Seiichi Banba, Tetsuro Sawai, Hisanori Uda 2001-04-17
6037397 Rubber molded product Mikitoshi Satoh, Hiroaki Sawa, Kazuyoshi Ikeda, Masato Nishikawa 2000-03-14
5959228 Key support device 1999-09-28
5930695 Radio receiver with amplitude limiter prior to mixer and band limiting filter Fuminori Itukaiti, Kazutoshi Higuchi, Jun'ichi Nakagawa 1999-07-27
5894084 Pressure container Yasuki Oikawa 1999-04-13
5610352 Mechanism for rotatably supporting rotary member of keyboard 1997-03-11
5571983 Abutment device for a key switch arrangement operable with both hammer-equipped and hammerless keyboards for electronic musical instruments Kazuhiro Tsukamoto 1996-11-05
5528509 Method of designing a high-frequency circuit Tetsuro Sawai, Shigeyuki Murai, Yasoo Harada 1996-06-18
5467116 Ink jet printer with device for aligning an ink cartridge Shinya Nakamura, Steven J. Dietl, Donald M. Stevens 1995-11-14
5243125 Keyboard apparatus for electronic musical instrument having cooperating jacks and hammers 1993-09-07
5210411 Detection mark and method and apparatus for detecting mark Toshio Oshima, Masato Nishida, Tsunemi Ohiwa 1993-05-11
5189081 Penetrable, epoxy resin composition comprising glycidyl ether of bisphenol modified with glycol or urethane, and inorganic filler Ichiro Akutagawa, Kunimitsu Matsuzaki 1993-02-23
5079985 Keyboard apparatus for electronic keyboard musical instrument Yutaka Tamai, Yoshiaki Shimoda 1992-01-14
5077325 Penetrable, epoxy resin composition comprising glycidyl ether of bisphenol modified with glycol or urethane, and inorganic filler Ichiro Akutagawa, Kunimitsu Matsuzaki 1991-12-31
5036743 Keyboard device for electronic musical instrument Norizou Kamimura, Yutaka Tamai, Yoshiaki Shimoda 1991-08-06
5031369 Free access floor Atsuhiko Kobayashi 1991-07-16
4954602 Liquid, epoxy resin composition Ichiro Akutagawa, Toshihiro Hanamori, Kunimitsu Matsuzaki, Shinobu Okamura 1990-09-04
4890533 Key device for electronic keyboard musical instrument Masanori Katsuta, Yutaka Tamai, Norizo Kamimura 1990-01-02
4856407 Action mechanism for a keyboard of an electronic piano Masanori Katsuta 1989-08-15
4551729 Method of making thermal transfer type multicolor printing Takeshi Kubo, Junji Kawano, Fumio Takahashi 1985-11-05
4367285 Assaying lipid peroxide in lipid compositions Hideo Misaki 1983-01-04