RY

Risaburo Yoshida

TC Toyo Ink Mfg. Co.: 3 patents #62 of 499Top 15%
TC Toppan Printing Co.: 2 patents #414 of 1,467Top 30%
HC Hisamitsu Pharmaceutical Co.: 1 patents #188 of 383Top 50%
Overall (All Time): #1,055,131 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5501350 Process for producing printed wiring board Kiyotomo Nakamura, Akitsu Ota, Mitsuaki Taguchi 1996-03-26
5264049 Method of manufacturing a multi-layered wiring board Akira Muraki, Yasuhiro Sakuma, Masahiro Itoh 1993-11-23
4223074 Process for producing metal-boehemite laminates Hidetoshi Nagata, Michihisa Naito, Keisuke Kaiho 1980-09-16
4205685 Thermogenic sheet-combined poultices Keisuke Kaiho, Yusaku Ide, Kanji Noda, Tetsuya YAMAGATA, Hirotaka Kida 1980-06-03
4199548 Thermally diffusible composites Keisuke Kaiho, Yusaku Ide, Takeshi Hirose 1980-04-22