TM

Tsutomu Maruyama

SO Sony: 15 patents #2,858 of 25,231Top 15%
KC Kansai Paint Co.: 9 patents #54 of 822Top 7%
FC Fuji Photo Optical Co.: 2 patents #214 of 509Top 45%
FU Fujikura: 2 patents #518 of 1,407Top 40%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
KK Kabushiki Kaisha Kinki: 2 patents #20 of 78Top 30%
AC Asahi Glass Co.: 2 patents #833 of 2,251Top 40%
MK Matsuo Sangyo Kabushiki Kaisha: 2 patents #6 of 18Top 35%
DC Daiwa Can: 1 patents #87 of 181Top 50%
Mazda Motor: 1 patents #2,563 of 4,755Top 55%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
NE Nec: 1 patents #7,889 of 14,502Top 55%
SC Sanyo Denki Co.: 1 patents #133 of 221Top 65%
IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #88,314 of 4,157,543Top 3%
37
Patents All Time

Issued Patents All Time

Showing 25 most recent of 37 patents

Patent #TitleCo-InventorsDate
12284455 Optical measurement device and optical measurement system Masaaki Hara 2025-04-22
11959768 Guidance control device and guidance control method Takanori Fujishima, Yuuzou Miyoshi, Takahiro Okamoto 2024-04-16
9254762 Seat structure for vehicle Takashi Suzuki, Kouichi Nakaya, Shin Sakai, Katsunori Monden, Hirotaka Matsumura +1 more 2016-02-09
8934324 Light source and recording apparatus Goro Fujita 2015-01-13
8902942 Laser apparatus and bio-imaging apparatus Goro Fujita, Junichi Horigome 2014-12-02
8537647 Recording apparatus Goro Fujita, Junichi Horigome 2013-09-17
8462599 Optical oscillation device and recording apparatus Goro Fujita 2013-06-11
8416671 Recording apparatus Goro Fujita 2013-04-09
8406261 Laser driving device and laser driving method Goro Fujita, Seiji Kobayashi 2013-03-26
8218592 Laser device, optical pickup, and optical disk device Goro Fujita 2012-07-10
7978792 Reproducing apparatus and method, signal processing apparatus and method, and program Junya Shiraishi 2011-07-12
7691207 Method for cleaning disk-shape glass substrate and magnetic disk Osamu Miyahara, Kazuo Mannami, Kuniyuki Someya 2010-04-06
7539108 Optical information reproduction apparatus and optical information reproduction method Isao Ichimura 2009-05-26
7413496 Method and device for polishing endless belt metal rings for continuously variable transmission Takeshi Yoshimura, Yoshiyuki Minowa, Seiichi Minegishi, Yasuo Watanabe, Yoshiharu Watabe +4 more 2008-08-19
7301875 Information recording device and information recording method Isao Ichimura, Yuichi Sabi, Kiyoshi Osato 2007-11-27
7126899 Optical recording medium processing device and focal point control method thereof Isao Ichimura 2006-10-24
7099243 Optical pickup apparatus, optical disc apparatus, and tracking control method thereof Masami Yuasa 2006-08-29
6654323 Method of tracking servo for optical pickup device Koji Takasaki, Hitoshi Okada 2003-11-25
6576892 Infrared imaging device Sumihiro Uchida, Kenichi Murakado, Hiroshi Kawase, Eiji Nameki, Hiroki Shimomae 2003-06-10
6421314 Semiconductor laser drive device, optical head, optical disk device and optical disk recording and reproducing method 2002-07-16
5731037 Pollution-preventing process Toshiaki Nagano, Atsushi Akiyama, Takeshi Tomiyama 1998-03-24
5686725 Method for reading of invisible marking Atsushi Akiyama, Hiroyasu Matsuki, Kazuo Sanada, Sadao Chigira, Masanobu Hidaka 1997-11-11
5605740 Actinic radiation-curable colored coating composition for use in vacuum-forming film, vacuum-forming film and vacuum-formed product Takeshi Tomiyama, Shinichi Ogino, Kenji Seko 1997-02-25
5547501 Method for formation of invisible marking and method for reading of invisible marking Atsushi Akiyama, Kazuo Sanada, Sadao Chigira, Masanobu Hidaka 1996-08-20
5332769 Electron radiation curing type adhesive and polyester film laminated metal plate thereof Michiyuki Kakimoto, Ryuichi Eguchi, Atsushi Kobayashi, Tadashi Nishimoto, Shozo Iseki 1994-07-26