IN

Isao Nakajima

HC Hitachi Koki Co.: 22 patents #26 of 888Top 3%
TO Toyota: 15 patents #1,771 of 26,838Top 7%
HI Hitachi: 13 patents #3,142 of 28,497Top 15%
NI Ngk Insulators: 9 patents #362 of 2,083Top 20%
Ricoh Company: 5 patents #3,664 of 9,818Top 40%
RS Ricoh Printing Systems: 5 patents #20 of 200Top 10%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
TO Tonen: 2 patents #77 of 264Top 30%
DC Dow Corning Toray Silicone Company: 1 patents #139 of 246Top 60%
HI Hitchi: 1 patents #1 of 56Top 2%
TU Tohoku University: 1 patents #615 of 1,680Top 40%
SO Sony: 1 patents #17,262 of 25,231Top 70%
HS Hitachi Printing Solutions: 1 patents #50 of 99Top 55%
Overall (All Time): #30,079 of 4,157,543Top 1%
69
Patents All Time

Issued Patents All Time

Showing 51–69 of 69 patents

Patent #TitleCo-InventorsDate
5648132 Composite insulator, segment used for producing the same and method of producing the same by using the segment Tetsuhiko Abe, Shigehiko Kunieda, Yusuke Utsumi 1997-07-15
5607702 Segment with heating and cooling device and mold using the segments Koji Hayakawa, Yusuke Utsumi 1997-03-04
5578819 Optical recorder having a signal separation circuit and a FIFO memory circuit Keiji Kataoka, Susumu Saito, Shuuho Yokokawa, Satoshi Aita, Muneyoshi Akai +4 more 1996-11-26
5572290 Electrophotographic printing system including a plurality of electrophotographic printers having adjustable printing speeds Hiroshi Ueno, Yasuyuki Tsuji, Shuuho Yokokawa, Kunitomo Takahashi, Youji Hirose +7 more 1996-11-05
5557386 Toner recovering device for electrophotographic apparatus and toner recovering filter for said toner recovering device Yuuji Meguro, Shuho Yokokawa, Tsukasa Onose, Hiroshi Ueno 1996-09-17
5519080 Insulators Takao Matsushita, Katsuya Baba, Kazuo Hirai, Takayuki Takeda 1996-05-21
5453820 Developing device having a developer mixing chamber for use in electrophotographic apparatus Hiroshi Ueno, Yasuyuki Tsuji, Shuuho Yokokawa, Tsukasa Onose, Yoshio Ogura +1 more 1995-09-26
5359396 Toner density detection method for electrophotographic apparatus Yoshio Ogura, Yasuyuki Tsuji, Shuuho Yokokawa, Kunitomo Takahashi, Muneyoshi Akai +3 more 1994-10-25
5109466 Method for producing an optical fiber composite insulator Shoji Seike, Noriyasu Oguri 1992-04-28
4961704 Sheet meandering movement preventing method Shigeo Nemoto, Osamu Namikawa, Kiyomi Tsuchiya, Yasuo Kikuchi, Tomio Sugaya +2 more 1990-10-09
4952782 Fixing unit for electrophotographic device Syuho Yokokawa, Shinichi Fukazawa, Yasuo Kikuchi, Takashi Suzuki 1990-08-28
4949096 Laser printer with thermal fixing of toner Toshitaka Ogawa, Yasuo Kikuchi, Tomio Sugaya, Takashi Suzuki, Shigenobu Katagiri 1990-08-14
4921322 Optical fiber composite insulator Shoji Seike, Noriyasu Oguri 1990-05-01
4810836 Optical fiber-containing insulators Katsuro Shinoda, Toshiyuki Kawaguchi, Kazumi Nakanishi, Noriyasu Oguri, Hiroshi Harada 1989-03-07
4672392 Thermal head for thermal printer Kazuya Higeta, Takahiro Daikoku, Kazumasa Fujioka 1987-06-09
4587399 Thermal head Kazuya Higeta, Kazumasa Fujioka, Takeo Nemoto, Takahiro Daikoku 1986-05-06
4511269 Cancel type printing head Kazue Takahashi, Kenzi Okuna, Mineo Harada, Yutaka Kako 1985-04-16
4438692 Printing apparatus with cooling of hammer printing coils Michio Yanadori, Yuji Hosoda, Kenichi Igarashi, Makoto Kurosawa, Kensei Hosoya +1 more 1984-03-27
4392423 Printing hammer driving apparatus Koji Tagusari, Kenji Okuna, Toru Hayama, Kazue Takahashi, Michihiro Watanabe +1 more 1983-07-12