TO

Tatsuo Ogawa

Sumitomo Electric Industries: 17 patents #1,358 of 21,551Top 7%
Ngk Spark Plug Co.: 10 patents #172 of 1,594Top 15%
YA Yazaki: 7 patents #644 of 3,427Top 20%
PA Panasonic: 7 patents #3,841 of 21,108Top 20%
DC Dowa Mining Co.: 3 patents #57 of 324Top 20%
DC Dai-Ichi Kogyo Seiyaku Co.: 3 patents #60 of 288Top 25%
TI Toyota Industries: 2 patents #904 of 1,610Top 60%
NE Nec: 2 patents #5,510 of 14,502Top 40%
SM Suzuki Motor: 2 patents #288 of 1,209Top 25%
NT NTT: 1 patents #2,911 of 4,871Top 60%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Aisin Seiki Kabushiki Kaisha: 1 patents #2,094 of 3,782Top 60%
Overall (All Time): #68,237 of 4,157,543Top 2%
44
Patents All Time

Issued Patents All Time

Showing 26–44 of 44 patents

Patent #TitleCo-InventorsDate
6096411 Conductive paste composition for via hole filling and printed circuit board using the same Seiichi Nakatani, Kouji Kawakita 2000-08-01
6085795 Corrugate tube fixing protector Gen Ozono 2000-07-11
5977490 Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste, and method of manufacturing the same Kouji Kawakita, Seiichi Nakatani, Masatoshi Suehiro, Kouichi Iwaisako, Hideo Akiyama 1999-11-02
5972482 Printed circuit board and method of manufacturing the same Akihito Hatakeyama, Seiichi Nakatani, Kouji Kawakita, Hiroshi Sogou, Tamao Kojima 1999-10-26
5933061 Chip-type piezoelectric filter and filter circuit using such piezoelectric filter Kenji Takamoro, Takeshi Sugiyama 1999-08-03
5914358 Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste, and method of manufacturing the same Kouji Kawakita, Seiichi Nakatani, Masatoshi Suehiro, Kouichi Iwaisako, Hideo Akiyama 1999-06-22
5733467 Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste, and method of manufacturing the same Kouji Kawakita, Seiichi Nakatani, Masatoshi Suehiro, Kouichi Iwaisako, Hideo Akiyama 1998-03-31
5652042 Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste Kouji Kawakita, Seiichi Nakatani, Masatoshi Suehiro, Kouichi Iwaisako, Hideo Akiyama 1997-07-29
5574414 High-frequency ladder type piezoelectric filter and piezoelectric resonator therefor Yasuhiko Nakagawa 1996-11-12
5572173 Ladder type filter with adjustable resonator positioning member Yasuhiko Nakagawa, Junji Kawai 1996-11-05
5570070 Method of adjusting a frequency response in a ladder-type electric filter Junji Kawai 1996-10-29
5484647 Connecting member of a circuit substrate and method of manufacturing multilayer circuit substrates by using the same Seiichi Nakatani, Akihito Hatakeyama, Kouji Kawakita, Hirishi Sogou, Tamao Kojima 1996-01-16
5426401 Method of adjusting a frequency response in a ladder-type electric filter Junji Kawai 1995-06-20
5392012 Piezoelectric filter in a casing sealed by an insulating filler and having cranked connecting legs Tatsuo Iwata, Yasuhiko Nakagawa 1995-02-21
5260675 Ladder-type electric filter device Isao Shimizu 1993-11-09
5159524 Laser trimable capacitor Yo Hasegawa, Kazuyuki Okano, Yasuhito Isozaki, Chiharu Hayashi 1992-10-27
5077544 Ladder-type piezoelectric filter having higher input and output Qm values Takesumi Nagai 1991-12-31
4933781 Recording method and a recording and/or reproducing apparatus Hiroshi Nishimura 1990-06-12
4864259 Ladder-type electric filter circuit apparatus Kenji Takamoro, Kenji Mizoe, Yasuhiko Nakagawa 1989-09-05