RI

Ryoichi Ichikawa

NC Nihon Dempa Kogyo Co.: 23 patents #7 of 296Top 3%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
JE Jeol: 1 patents #309 of 669Top 50%
ML Mitsubishi Petrochemical Company Limited: 1 patents #291 of 670Top 45%
TS Toshiba Energy Systems & Solutions: 1 patents #268 of 569Top 50%
📍 Hatsukaichi, JP: #4 of 139 inventorsTop 3%
Overall (All Time): #111,798 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
7544464 Manufacturing method of tuning-fork type quartz crystal resonator 2009-06-09
7361909 Method and apparatus for correcting drift during automated FIB processing Akihiko Haraguchi, Yuji Hasegawa, Naohito Inoue, Kazutomo Shimizu 2008-04-22
6912102 Magnetic head with IC thereon with recording frequency controlled according to IC position Mikio Tokuyama, Shigeo Nakamura, Toshihiko Shimizu, Hiromitsu Masuda, Hiromitsu Tokisue 2005-06-28
6754023 Magnetic disk device with magnetic head supporting mechanism having integrated circuit mounted thereon Mikio Tokuyama, Shigeo Nakamura, Toshihiko Shimizu, Hiromitsu Masuda, Hiromitsu Tokisue 2004-06-22
5757573 Magnetic disk device without slider and having magnetic head mounted directly on magnetic head support Mikio Tokuyama, Noriaki Okamoto 1998-05-26
5335126 Magnetic disk device without slider and having magnetic head mounted directly on magnetic head support including integral gas pressure generating structure Mikio Tokyuama, Noriaki Okamoto 1994-08-02
4244910 Method for injection molding of polyolefin containing inorganic filler Hiroshi Yui, Yoshihiro Sobajima, Shigekazu Ema 1981-01-13