HY

Hajime Yuzurihara

Ricoh Company: 31 patents #601 of 9,818Top 7%
TT Tokyo Institute Of Technology: 1 patents #411 of 1,159Top 40%
Overall (All Time): #119,177 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
6741545 Phase-change medium usable in phase-difference tracking Michiaki Shinotsuka, Hiroshi Deguchi, Hiroko Tashiro 2004-05-25
6426936 Phase-change medium usable in phase-difference tracking Michiaki Shinotsuka, Hiroshi Deguchi, Hiroko Tashiro 2002-07-30
6391417 Optical information recording medium Hiroko Tashiro, Hiroshi Deguchi 2002-05-21
6177167 Optical information recording medium Hiroko Tashiro, Hiroshi Deguchi 2001-01-23
6096398 Phase-change optical recording medium Hiroshi Deguchi, Michiaki Shinotsuka, Takashi Shibaguchi, Makoto Harigaya, Mikio Kinoshita +2 more 2000-08-01
5103422 Three-dimensional magnetic memory medium and method for initial setting thereof Toshiaki Tokita, Motoharu Tanaka 1992-04-07