HY

Hiroyuki Yamaguchi

Sumitomo Electric Industries: 3 patents #122 of 1,892Top 7%
AK Asahi Kogaku Kabushiki Kaisha: 1 patents #1 of 16Top 7%
PE Pentax: 1 patents #93 of 186Top 50%
NC N.E. Chemcat: 1 patents #3 of 7Top 45%
📍 Yokohama, JP: #10 of 176 inventorsTop 6%
Overall (1994): #1,970 of 165,921Top 2%
6
Patents 1994

Issued Patents 1994

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5343454 Tracking control apparatus for correcting tracking error signal according to approximate equation of a function of track address Katsuya Watanabe, Masayuki Shibano, Yasuaki Edahiro, Mitsuro Moriya 1994-08-30
5331615 Tracking control apparatus for an optical disk device Shinichi Yamada, Mitsuro Moriya, Masayuki Shibano 1994-07-19
5319623 Data-track search apparatus for locating a desired data track on a record carrier Shinichi Yamada, Mitsuro Moriya 1994-06-07
5317371 Skew prevention structure for electrophotographic printer Yoshio Monma 1994-05-31
5306684 Catalyst for purification of exhaust gases Takashi Itoh, Yukio Kosaki 1994-04-26
5305068 Continuous paper feed prevention lock mechanism for printer Tsutomu Sato, Masatoshi Takano, Taizo Saito 1994-04-19