MM

Masaaki Matsumoto

HI Hitachi: 29 patents #976 of 28,497Top 4%
TS Toshiba Industrial Products And Systems: 11 patents #1 of 65Top 2%
HG HGST: 9 patents #11 of 483Top 3%
TS Toshiba Infrastructure Systems & Solutions: 6 patents #9 of 424Top 3%
CC Cateye Co.: 5 patents #9 of 37Top 25%
TC Tsubakimoto Chain: 4 patents #110 of 593Top 20%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
KC Koyo Seiko Co.: 3 patents #150 of 749Top 25%
DC Dai-Ichi Kogyo Seiyaku Co.: 2 patents #87 of 288Top 35%
ML Mitsubishi Pencil Company, Limited: 2 patents #127 of 302Top 45%
Pioneer: 2 patents #761 of 1,730Top 45%
TM Tsuyama Mfg.: 2 patents #3 of 8Top 40%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
DC Dks Co.: 1 patents #6 of 15Top 40%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
📍 Shimabara, JP: #13 of 395 inventorsTop 4%
Overall (All Time): #24,828 of 4,157,543Top 1%
76
Patents All Time

Issued Patents All Time

Showing 51–75 of 76 patents

Patent #TitleCo-InventorsDate
6373666 Magnetic disk drive having arm displacement limit mechanism for shock resistance Akira Iida, Shinsuke Higuchi 2002-04-16
D444828 Running distance indicator for exercising machine 2001-07-10
6157519 Magnetic head gimbal assembly of a magnetic disk unit having a load point matched with the center of impact Hidekazu Kohira, Hiromitsu Tokisue, Masayuki Suzuki, Yoshinori Takeuchi, Toshihiko Shimizu 2000-12-05
6055131 Magnetic head suspension having selected thicknesses for enhancing rigidity Haruhide Takahashi, Shuichi Sugahara 2000-04-25
6045473 Plate for a silent chain Haruo Sugita, Koichi Kaihotsu, Makoto Kanehira, Takayuki Funamoto, Nobuyuki Fujimoto +2 more 2000-04-04
5989141 Silent chain Nobuto Kozakura, Tsutomu Haginoya 1999-11-23
5973880 Negative pressure flying head slider having improved side rails construction Kiyoshi Hashimoto, Hidekazu Kohira, Yasuo Kojima, Shinji Yonemura 1999-10-26
5835305 Magnetic disk apparatus employing liquid bearing type or physical contact type magnetic head slider Tetsuya Hamaguchi, Yoshihiro Shiroishi, Yukio Kato, Hiromitsu Tokisue, Takayuki Nakakawaji +1 more 1998-11-10
5606472 Disk unit Kyo Akagi, Yasuhiro Kato, Akira Iida, Yong-Kweon Kim 1997-02-25
5601515 Adjustable recumbent bicycle exerciser 1997-02-11
5557486 Thin external memory unit with hard disk Kyo Akagi, Yasuhiro Kato, Akira Iida, Yong-Kweon Kim 1996-09-17
5530605 Magnetic-head slider support mechanism and magnetic recording apparatus Tetsuya Hamaguchi, Yukio Katou, Masaru Matsushima 1996-06-25
5430591 Negative pressure flying head slider having siderails with narrow width portion Yoshinori Takeuchi, Kenji Mori, Hiroshi Agari, Jyousei Shimizu, Eisei Togawa +7 more 1995-07-04
5383073 Magnetic head supporting apparatus having a fulcrum point of load support offset from a slider center in an air upstream direction Tetsuo Masukawa, Yokuo Saitoh, Yasuo Kojima, Toshio Suzuki, Yukimori Umakoshi +1 more 1995-01-17
5294786 Optical data card for an exerciser Hachiro Maeyama, Takashi Ueda 1994-03-15
5247410 Magnetic disk apparatus using a rotary actuator for magnetic head positioning with reduced vibration Susumu Ebihara, Kenji Mori, Jun Naruse, Tsuyoshi Takahashi, Yoshiyuki Hirano 1993-09-21
5230673 Exerciser in which exercising load is controlled based on individual data stored in an optical data card Hachiro Maeyama, Takashi Ueda 1993-07-27
4975342 Fuel cell 1990-12-04
4948271 Bearing structure with improved lubricating seals for supporting shaft element Masao Nunotani 1990-08-14
4919551 Bearing with improved lubrication seals Masao Nunotani 1990-04-24
4883371 Bearing system for a wheel 1989-11-28
4767680 Fuel cell Akemi Hijikata, Taesuke Nakayama, Yasuyuki Hamazaki, Kenji Kataoka 1988-08-30
4718881 Frictional transmission chain Yoshiaki Sugimoto, Kazumi Ohmura, Hisaharu Terajima, Nobuto Kozakura 1988-01-12
4702972 Electrolyte replenishing system for a laminated fuel cell 1987-10-27
4521731 Detector attachment arrangement Takashi Uyeda 1985-06-04