RT

Ryuji Takeda

TC Thk Co.: 5 patents #77 of 450Top 20%
SO Sony: 3 patents #10,744 of 25,231Top 45%
TC Toshiba Ceramics Co.: 2 patents #107 of 458Top 25%
GC Globalwafers Japan Co.: 1 patents #21 of 44Top 50%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
PC Purex Co.: 1 patents #23 of 65Top 40%
Overall (All Time): #464,223 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8642449 Silicon wafer Takashi Watanabe 2014-02-04
7336570 Apparatus and method for adjusting the tilt angle of an optical pickup device Tetsuhiro Shiomi, Seiichiro Oishi, Mitsuhiko Awata, Takahiro Komazaki, Yasushi Saito 2008-02-26
6754154 Optical disk driving apparatus, optical disk driving method and optical disk apparatus Seiichiro Oishi, Tetsuhiro Shiomi 2004-06-22
6571653 Ball screw Tetsuhiro Nishide, Hiroshi Niwa, Mitsuaki Honma 2003-06-03
6341103 Optical disk apparatus capable of correcting the drive current waveforms of stepping motor Seiichiro Oishi, Tetsuhiro Shiomi 2002-01-22
6286383 Ball screw device Takeki Shirai, Hidekazu Michioka, Shigeru Ebina 2001-09-11
6282971 Ball screw Takeki Shirai, Shigeru Ebina 2001-09-04
6276225 Ball screw assembly Tetsuhiro Nishide, Hiroshi Niwa, Mitsuaki Honma 2001-08-21
6089117 Ball screw device Shigeru Ebina 2000-07-18
6054373 Method of and apparatus for removing metallic impurities diffused in a semiconductor substrate Hiroshi Tomita, Hisashi Muraoka 2000-04-25
5788763 Manufacturing method of a silicon wafer having a controlled BMD concentration Kenro Hayashi, Katsuhiro Chaki, Ping Xin, Jun Yoshikawa, Hiroyuki Saito 1998-08-04