SM

Shigeki Matsunaga

PA Panasonic: 16 patents #1,398 of 21,108Top 7%
NC Nippon Seiko Co.: 4 patents #28 of 315Top 9%
DI Dic: 3 patents #189 of 844Top 25%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
TI Takasago International: 1 patents #239 of 465Top 55%
TC Tokushu Paper Mfg. Co.: 1 patents #14 of 39Top 40%
Nsk: 1 patents #937 of 1,559Top 65%
KK Kabushikikaisha Kojundokagaku Kenkyusho: 1 patents #7 of 17Top 45%
MC Matushita Electric Industrial Co.: 1 patents #3 of 106Top 3%
DC Dainippon Ink And Chemicals: 1 patents #446 of 1,002Top 45%
📍 Kasai, JP: #176 of 5,842 inventorsTop 4%
Overall (All Time): #106,896 of 4,157,543Top 3%
33
Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
6086738 Record sheet used in electro-coagulation printing method Toyohisa Mouri, Toshio Takagi, Yutaka Hattori 2000-07-11
5888367 Record sheet used in electro-coagulation printing method Toyohisa Mouri, Toshio Takagi, Yutaka Hattori 1999-03-30
5271631 Magnetic fluid seal apparatus Atsushi Yokouchi 1993-12-21
5215313 Magnetic fluid sealing device Atsushi Yokouchi 1993-06-01
4842426 Bearing assembly Kyozaburo Furumura 1989-06-27
4841408 Electroconductive sliding apparatus Yuichi Ishikawa, Masachi Hosoya 1989-06-20
RE32573 Process for producing a ferrofluid, and a composition thereof Kyozaburo Furumura 1988-01-05
4485024 Process for producing a ferrofluid, and a composition thereof Kyozaburo Furumura 1984-11-27