YI

Yoshio Ishigaki

SO Sony: 4 patents #3 of 234Top 2%
Overall (1982): #799 of 81,411Top 1%
5
Patents 1982

Issued Patents 1982

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4358769 Loop antenna apparatus with variable directivity Masahiro Tada, Hirokazu Ichikawa, Mitsuo Fukushima, Koya Nakamichi, Koji Ouchi 1982-11-09
4339792 Voltage regulator using saturable transformer Masayuki Yasumura 1982-07-13
4338606 Antenna system with variable directivity Masahiro Tada, Koji Ouchi, Koya Nakamichi 1982-07-06
4322742 Method and apparatus for improving the sharpness of a video picture Susumu Yoshida, Kinya Shinkai 1982-03-30
4322855 Remote control apparatus Takao Mogi, Shigetoshi Murakami, Hisao Okada 1982-03-30