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 26–50 of 76 patents

Patent #TitleCo-InventorsDate
7038883 Magnetic head slider, support therefor and magnetic disk unit Ryuji Tsuchiyama, Hidekazu Kohira, Kiyoshi Hashimoto, Junguo Xu 2006-05-02
6963464 Magnetic head heating element in a disk drive Junguo Xu, Ryuji Tsuchiyama, Mikio Tokuyama 2005-11-08
6934123 Magnetic disk device and magnetic head slider Hidekazu Kohira, Hideaki Tanaka, Teruyoshi Higashiya, Kiyoshi Hashimoto, Akira Matsuda +1 more 2005-08-23
6910991 Stationary bike 2005-06-28
6842309 Magnetic head slider having optimized ratio of negative pressure bearing to a front or center step bearing Hidekazu Kohira, Kiyoshi Hashimoto, Masayoshi Endo, Akio Takakura, Yoshihori Takeuohi +2 more 2005-01-11
6798605 Magnetic disk apparatus and method of controlling the same Masayuki Kurita, Yuuichi Ootani, Yoshihiko Miyake, Shinsuke Higuchi, Hideaki Tanaka +1 more 2004-09-28
6795275 Magnetic disk device and magnetic head slider Hidetoshi Anan, Tetsuya Matsusaki, Hidekazu Kohira, Yoshihiro Shiroishi, Hideaki Tanaka +4 more 2004-09-21
6785095 Magnetic disc apparatus with slider having specified location of action point of equivalent load Hiromitsu Tokisue, Ryuji Tsuchiyama, Yoshihiko Miyake, Kiyoshi Hashimoto 2004-08-31
6760193 Magnetic head gimbal assembly and magnetic disk unit Hidekazu Kohira, Hiromitsu Tokisue, Masayuki Suzuki, Yoshinori Takeuchi, Toshihiko Shimizu 2004-07-06
6744598 Magnetic disk device and magnetic head slider Hidekazu Kohira, Hideaki Tanaka, Teruyoshi Higashiya, Kiyoshi Hashimoto, Akira Matsuda +1 more 2004-06-01
6744600 Magnetic disk device and magnetic head slider Hidekazu Kohira, Hideaki Tanaka, Teruyoshi Higashiya, Kiyoshi Hashimoto, Akira Matsuda +1 more 2004-06-01
6741427 Magnetic disk drive having arm displacement limit mechanism for shock resistance Akira Iida, Shinsuke Higuchi 2004-05-25
6704252 Method and apparatus for reproducing information data from partial CD-R Yoshihiro Aso, Akihito Kajita, Takao Uchikura 2004-03-09
6690543 Magnetic disk drive with air bearing surface pad on movable portion and method of controlling Masayuki Kurita, Junguo Xu, Hidekazu Kohira, Yuuichi Ootani, Hideaki Tanaka +2 more 2004-02-10
6657820 Magnetic head slider Hidekazu Kohira, Hideaki Tanaka, Akira Matsuda, Shozo Saegusa 2003-12-02
6628480 Magnetic head slider having optimized ratio of negative pressure recess to front step bearing Hidekazu Kohira, Kiyoshi Hashimoto, Masayoshi Endo, Akio Takakura, Yoshinori Takeuchi +2 more 2003-09-30
6618225 Magnetic head supporting apparatus having thermally insulated IC mounted on an arm portion Hayato Shimizu, Norio Nakazato, Yoshihiro Shiroishi, Mikio Tokuyama, Toshihiko Shimizu +1 more 2003-09-09
6597536 Magnetic head slider Ryuji Tsuchiyama, Kiyoshi Hashimoto, Xu Junguo 2003-07-22
6556381 Magnetic disk device and magnetic head slider Hidekazu Kohira, Hideaki Tanaka, Teruyoshi Higashiya, Kiyoshi Hashimoto, Akira Matsuda +1 more 2003-04-29
6510113 Recording apparatus, recording method, and recording medium carrying computer program for recording a signal Akihisa Yamaguchi 2003-01-21
6498702 Magnetic head supporting apparatus having thermally insulated read/write IC mounted on arm portions thereof Hayato Shimizu, Norio Nakazato, Yoshihiro Shiroishi, Mikio Tokuyama, Toshihiko Shimizu +1 more 2002-12-24
6493188 Magnetic disc apparatus having slider which reduces variation in lift-up caused by change in air pressure Hiromitsu Tokisue, Ryuji Tsuchiyama, Yoshihiko Miyake, Kiyoshi Hashimoto 2002-12-10
6493179 Magnetic head gimbal assembly and magnetic disk unit Hidekazu Kohira, Hiromitsu Tokisue, Masayuki Suzuki, Yoshinori Takeuchi, Toshihiko Shimizu 2002-12-10
6450910 Link plate for silent chains and method of producing the same Koichi Inoko 2002-09-17
6445544 Magnetic head gimbal assembly and magnetic disk unit Hidekazu Kohira, Hiromitsu Tokisue, Masayuki Suzuki, Yoshinori Takeuchi, Toshihiko Shimizu 2002-09-03