MS

Masato Sakai

HC Hitachi Koki Co.: 57 patents #2 of 888Top 1%
OD Oki Data: 16 patents #28 of 635Top 5%
OC Oki Electric Industry Co.: 5 patents #405 of 2,807Top 15%
TO Toshiba: 4 patents #258 of 2,688Top 10%
Rohm Co.: 4 patents #677 of 2,292Top 30%
SU Sumco: 3 patents #118 of 464Top 30%
JR Japan Synthetic Rubber: 3 patents #110 of 558Top 20%
KC Konami Digital Entertainment Co.: 2 patents #166 of 611Top 30%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
DI Daicel Chemical Industries: 1 patents #476 of 893Top 55%
SA Sanden: 1 patents #336 of 631Top 55%
SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
TC Takiron Co.: 1 patents #20 of 69Top 30%
HC Hitachi Automotive Engineering Co.: 1 patents #156 of 314Top 50%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
FC Futaba Industrial Co.: 1 patents #70 of 167Top 45%
OS Olympus Medical Systems: 1 patents #501 of 833Top 65%
📍 Ibaraki, CA: #4 of 23 inventorsTop 20%
Overall (All Time): #13,763 of 4,157,543Top 1%
103
Patents All Time

Issued Patents All Time

Showing 26–50 of 103 patents

Patent #TitleCo-InventorsDate
D591916 Engine blower Shingo Kosugi, Shinichi Kakefuda, Tomoyuki Kawahara, Yoshikazu Yokoyama, Takahiro Hirai 2009-05-05
D589056 Engine Takeshi Matsuoka, Masanori Okada 2009-03-24
7490746 Power tool Takeshi Matsuoka, Chikai Yoshimizu, Masanori Watanabe, Katsuhiro Oomori, Takuya Teranishi 2009-02-17
D568239 Battery pack Masanori Okada, Toshio Mizoguchi 2008-05-06
D567615 Portable electric driver Takeshi Taniguchi, Hitoshi Tsuzuki, Masanori Okada, Katsuhiro Oomori 2008-04-29
7344054 Power tool Takeshi Matsuoka, Chikai Yoshimizu, Masanori Watanabe, Katsuhiro Oomori, Takuya Teranishi 2008-03-18
7340209 Fusing device with rough surface and method for manufacturing the fusing member Sumio Aramata, Naoki Sunaga 2008-03-04
D562228 Battery pack Masanori Okada, Toshio Mizoguchi 2008-02-19
7333762 Fixing apparatus having a pressurizing mechanism Noboru Oishi, Tatsuho Yoshida, Shigeru Tsunoda 2008-02-19
D559916 Music game control device — 2008-01-15
D557749 Music game control device — 2007-12-18
D553562 Battery pack Masanori Okada, Tomoyuki Kawahara, Toshio Mizoguchi 2007-10-23
D544436 Battery pack Tomoyuki Kawahara, Masanori Okada, Kazunobu Yoshimura 2007-06-12
D539310 Air compressor Takeshi Matsuoka, Mitsuhiro Sunaoshi 2007-03-27
D539309 Air compressor Takeshi Matsuoka, Mitsuhiro Sunaoshi 2007-03-27
7140451 Portable tool having cover and label to be stuck on the portable tool for identification Chikai Yoshimizu, Toshiaki Mashiko, Mikio Kitao, Yoshihiro Komuro, Jyunichi Suzuki +2 more 2006-11-28
7133633 Image forming apparatus with paper separator-fixing roller gap mechanism Masahiro Fukuda, Tatsuya Murakami 2006-11-07
D530270 Battery pack Takashi Ozawa, Takeshi Taniguchi 2006-10-17
D529936 Slide compound miter saw Takeshi Taniguchi, Hideaki Terashima, Shigeharu Ushiwata, Ryuuichi Imamura 2006-10-10
7108079 Electric power tool Satoru Matsuno, Masanori Watanabe, Chikai Yoshimizu 2006-09-19
D527969 Portable electric hammer drill Masanori Okada, Hitoshi Tsuzuki, Takeshi Taniguchi, Takahiro Ookubo 2006-09-12
D526873 Portable electric hammer drill Hitoshi Tsuzuki, Masanori Okada, Takeshi Taniguchi, Takahiro Ookubo 2006-08-22
D526551 Portable gas nailing machine Haruhiko Oouchi 2006-08-15
D525098 Portable electric jigsaw Takeshi Taniguchi, Teruo Imai 2006-07-18
D524136 Portable electric driver Takeshi Taniguchi, Takashi Ozawa, Katsuhiro Oomori, Takuya Teranishi, Yoshihiro Komuro 2006-07-04