Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
SK

Seiji Kasahara — 18 Patents

FUFujifilm: 9 patents #988 of 4,519Top 25%
JAJatco: 6 patents #107 of 871Top 15%
Nissan Motor Co.: 5 patents #1,472 of 8,689Top 20%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
JAJapan Atomic Energy Agency: 1 patents #64 of 251Top 30%
Kabushiki Kaisha Toshiba: 1 patents #13,641 of 21,451Top 65%
Yokohama, JP: #5,752 of 49,234 inventorsTop 15%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
Seiji Kasahara has been granted 18 US patents while listed as an inventor at Fujifilm. The first was granted in 2001 and the most recent in September 2021. Seiji Kasahara ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Seiji Kasahara in Yokohama, JP.

Patents per Year

Patents granted per year, 2001 to 2021Bar chart with a peak of 3 patents in 2018.peak 32001: 1 patents20012003: 1 patents2007: 1 patents20072008: 1 patents2009: 1 patents20092010: 2 patents2013: 1 patents20132017: 2 patents2018: 3 patents20182019: 2 patents2020: 2 patents20202021: 1 patents2021

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11125323 Abnormality diagnosing device and abnormality diagnosing method for selection solenoid valve of automatic transmission Ken Son 2021-09-21
10612651 Lock-up clutch control device for vehicle, and lock-up clutch control method Toshimitsu Araki, Hideshi Wakayama, Kouji Saitou, Tetsuya Izumi 2020-04-07
10527161 Control device for automatic transmission and control method for automatic transmission Yoshinobu Kawamoto, Haibin Ma 2020-01-07
10480648 Lock-up clutch control device for vehicle, and lock-up clutch control method Toshimitsu Araki, Hideshi Wakayama, Hiroyasu Tanaka 2019-11-19
10371256 Vehicle lock-up clutch control device and lock-up clutch control method Toshimitsu Araki, Hideshi Wakayama, Kouji Saitou, Hiroyasu Tanaka 2019-08-06
10052807 Fiber manufacturing method, non-woven fabric manufacturing method, and fiber manufacturing equipment Yukihiro Katai, Shigehisa Sugiyama, Yasuhisa Shimoda, Masahiro Esaki 2018-08-21
10045936 Method for manufacturing transdermal-absorption sheet Aya Mochizuki, Yanlong Che, Shotaro Ogawa 2018-08-14
9987236 Transdermal absorption sheet, and manufacturing method for the same Junya YOSHIDA, Takayoshi Oyamada, Yanlong Che 2018-06-05
9845095 Vehicle control device and vehicle control method Hideshi Wakayama, Naohiro Hoshi 2017-12-19
9649281 Transdermal absorption sheet, and manufacturing method for the same Junya YOSHIDA, Takayoshi Oyamada, Yanlong Che 2017-05-16
8360139 Ceramics heat exchanger Takanari Inatomi, Yasuhiro Sakai, Shigeki Maruyama, Shoko Suyama, Ryutaro Hino +3 more 2013-01-29
7784765 Mold, method for producing the same and magnetic recording medium Kenji Ichikawa 2010-08-31
7674535 Magnetic transfer master disk, its manufacturing method and magnetic transfer method Kenji Ichikawa, Shiho Kamisawa 2010-03-09
7630153 Master carrier for magnetic transfer Akito Kamatani, Kazuhiro Niitsuma 2009-12-08
7368186 Master carrier for magnetic transfer Naoto Fujiwara, Kazuhiro Niitsuma 2008-05-06 $50,000
7294251 Process of producing master carrier for magnetic transfer Masakazu Nishikawa 2007-11-13 $80,000
6652953 Magnetic recording medium Kazunori Komatsu 2003-11-25 $20,000
6207223 Method for producing magnetic recording medium Kazunori Komatsu 2001-03-27 $56,000