Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JO

Junji Ogawa

Hitachi: 70 patents #109 of 28,497Top 1%
Fujitsu Limited: 45 patents #350 of 24,456Top 2%
KEKeyence: 3 patents #76 of 266Top 30%
FCFuji Electric Co.: 1 patents #1,354 of 2,643Top 55%
KRK.K. Video Research: 1 patents #4 of 8Top 50%
Sharp Kabushiki Kaisha: 1 patents #6,861 of 10,731Top 65%
Sagamihara, JP: #1 of 1 inventorsTop 100%
Overall (All Time): #8,973 of 4,157,543Top 1%
126 Patents All Time

Issued Patents All Time

Showing 76–100 of 126 patents

Patent #TitleCo-InventorsDate
7496724 Load balancing in a mirrored storage system 2009-02-24
7421547 Storage system and storage control method without requiring formatting of storage device Yuko Matsui 2008-09-02
7397293 Clock distribution circuit Kouichi Kanda, Hirotaka Tamura, Hisakatsu Yamaguchi 2008-07-08
7380090 Storage device and control method for the same Hideyuki Koseki, Yutaka Nakagawa 2008-05-27
7346599 Storage system and method of managing data stored in a storage system Yusuke Nonaka 2008-03-18
7293131 Access to disk storage using file attribute information Naoto Matsunami, Masaaki Iwasaki, Koji Sonoda, Kenichi Tsukiji 2007-11-06
7154797 Signal transmission system using PRD method, receiver circuit for use in the signal transmission system, and semiconductor memory device to which the signal transmission system is applied Miyoshi Saito 2006-12-26
7136963 Storage capable of cache assignment modification Naoto Matsunami, Akira Nishimoto, Yoichi Mizuno 2006-11-14
7069380 File access method in storage-device system, and programs for the file access Naoto Matsunami, Masaaki Iwasaki, Koji Sonoda, Kenichi Tsukiji 2006-06-27
6493394 SIGNAL TRANSMISSION SYSTEM FOR TRANSMITTING SIGNALS BETWEEN LSI CHIPS, RECEIVER CIRCUIT FOR USE IN THE SIGNAL TRANSMISSION SYSTEM, AND SEMICONDUCTOR MEMORY DEVICE APPLYING THE SIGNAL TRANSMISSION SYSTEM Hirotaka Tamura, Miyoshi Saito, Kohtaroh Gotoh, Shigetoshi Wakayama, Hisakatsu Araki +1 more 2002-12-10
6484268 Signal transmission system having a timing adjustment circuit Hirotaka Tamura, Hisakatsu Araki, Shigetoshi Wakayama, Kohtaroh Gotoh 2002-11-19
6385951 Rotary plant mowing apparatus employing auto-rotation of blade units 2002-05-14
6377638 SIGNAL TRANSMISSION SYSTEM FOR TRANSMITTING SIGNALS BETWEEN LSI CHIPS, RECEIVER CIRCUIT FOR USE IN THE SIGNAL TRANSMISSION SYSTEM, AND SEMICONDUCTOR MEMORY DEVICE APPLYING THE SIGNAL TRANSMISSION SYSTEM Hirotaka Tamura, Miyoshi Saito, Kohtaroh Gotoh, Shigetoshi Wakayama, Hisakatsu Araki +1 more 2002-04-23
6333883 Destructive read type memory circuit, restoring circuit for the same and sense amplifier Shigetoshi Wakayama, Kohtaroh Gotoh, Miyoshi Saito 2001-12-25
6247138 Timing signal generating circuit, semiconductor integrated circuit device and semiconductor integrated circuit system to which the timing signal generating circuit is applied, and signal transmission system Hirotaka Tamura, Hisakatsu Araki, Shigetoshi Wakayama, Kohtaroh Gotoh 2001-06-12
6205076 Destructive read type memory circuit, restoring circuit for the same and sense amplifier Shigetoshi Wakayama, Kohtaroh Gotoh, Miyoshi Saito 2001-03-20
6185256 Signal transmission system using PRD method, receiver circuit for use in the signal transmission system, and semiconductor memory device to which the signal transmission system is applied Miyoshi Saito 2001-02-06
6166992 Semiconductor device Yoshihiro Takemae, Masao Taguchi, Yukinori Kodama, Makoto Yanagisawa, Takaaki Suzuki +3 more 2000-12-26
6157688 Signal transmission system for transmitting signals between LSI chips, receiver circuit for use in the signal transmission system, and semiconductor memory device applying the signal transmission system Hirotaka Tamura, Miyoshi Saito, Kohtaroh Gotoh, Shigetoshi Wakayama, Hisakatsu Araki +1 more 2000-12-05
6064244 Phase-locked loop circuit permitting reduction of circuit size Shigetoshi Wakayama, Kohtaroh Gotoh, Miyoshi Saito, Hirotaka Tamura 2000-05-16
6009039 Semiconductor device Yoshihiro Takemae, Masao Taguchi, Yukinori Kodama, Makoto Yanagisawa, Takaaki Suzuki +3 more 1999-12-28
5973750 Television channel selection monitoring apparatus Tadayuki Aoyama, Takahide Yoshioka 1999-10-26
5909142 Semiconductor integrated circuit device having burn-in test capability and method for using the same Kenichi Kawasaki 1999-06-01
5822257 Semiconductor memory device capable of relieving fixed-failure memory cells and refresh-failure memory cells 1998-10-13
5767712 Semiconductor device Yoshihiro Takemae, Masao Taguchi, Yukinori Kodama, Makoto Yanagisawa, Takaaki Suzuki +3 more 1998-06-16