IY

Isao Yoshida

HI Hitachi: 2 patents #336 of 2,935Top 15%
OC Oki Electric Industry Co.: 1 patents #57 of 237Top 25%
Overall (1989): #9,934 of 140,708Top 8%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4870698 Output power control circuit for a mobile radio apparatus Tsutomu Katsuyama, Toyoo Kanai, Yasunobu Taguchi 1989-09-26
4831424 Insulated gate semiconductor device with back-to-back diodes Takeaki Okabe, Mitsuo Ito, Kazutoshi Ashikawa, Tetsuo Iijima 1989-05-16
4814288 Method of fabricating semiconductor devices which include vertical elements and control elements Masatoshi Kimura, Takeaki Okabe, Kouzou Sakamoto, Kazuo Hoya, Kouichiro Satonaka +2 more 1989-03-21