HM

Hideki Maruyama

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
EC Eagle Industry Co.: 4 patents #76 of 314Top 25%
Nissan Motor Co.: 3 patents #2,303 of 8,689Top 30%
HS Hitachi-Lg Data Storage: 2 patents #125 of 294Top 45%
HC Hitachi Consumer Electronics Co.: 2 patents #119 of 447Top 30%
HC Hitachi Media Electronics Co.: 2 patents #79 of 214Top 40%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
EC Eagleburgmann Japan Co.: 1 patents #8 of 18Top 45%
FL Fee Tat Plastic Factory Limited: 1 patents #3 of 4Top 75%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #220,394 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11300210 Mechanical seal Hiroyuki Ishihara 2022-04-12
10253876 Vehicle regenerative speed control device Takanobu Mouri, Takahiro Yoshino, Yuuzou Kageyama, Masashi Ono, Takuya Ishizuka 2019-04-09
10246077 Vehicle regenerative speed control device Takanobu Mouri, Takahiro Yoshino, Yuuzou Kageyama, Masashi Ono, Takuya Ishizuka 2019-04-02
10024436 Mechanical seal Kenji Kiryu, Yasuhiro Ikeda, Kimihiro TANI 2018-07-17
8422351 Optical disk apparatus and driving method thereof 2013-04-16
8305851 Optical disk apparatus Fumio Isshiki 2012-11-06
8208354 Optical disc apparatus, driving method of optical disc apparatus Toshiteru Nakamura 2012-06-26
8154961 Optical disk apparatus and focus jump method for multilayer optical disk 2012-04-10
8134902 Optical disc drive apparatus and its control method 2012-03-13
8121000 Optical disk apparatus Fumio Isshiki 2012-02-21
8077573 Optical disk apparatus and disk identification method Yukinobu Tanaka 2011-12-13
7936652 Optical disc apparatus Takeshi Ogata 2011-05-03
7463275 Light source for image writing apparatus and production method for light source Tetsuroh Nakamura, Ken-ichi Masumoto, Yuji Toyomura, Takafumi HAMANO, Akira Gyotoku 2008-12-09
7093836 Seal device Hajime Tsuboi 2006-08-22
6962340 Mechanical seal device 2005-11-08
6172752 Method and apparatus for simultaneously interferometrically measuring optical characteristics in a noncontact manner Masamitsu Haruna 2001-01-09
6108165 Rotary drum equipment and recording/reproducing equipment using the same Kenmei Masuda, Kuniaki Hirayama, Yoshio Uemura, Toshihiko Imachi, Kenkichi Inada +1 more 2000-08-22
5907162 Light-emitting device and method for manufacturing the same 1999-05-25
D306211 Combination torch and audible signal with stand 1990-02-20
4407186 Flow outlet structure for automotive air conditioner Masao Izumi, Hiroshi Yoshida 1983-10-04