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

Kiyotaka Tsuji — 36 Patents

Panasonic: 18 patents #1,189 of 21,108Top 6%
Kabushiki Kaisha Toshiba: 10 patents #3,098 of 21,451Top 15%
ICIshihara Chemical Co.: 4 patents #4 of 58Top 7%
DCDaiwa Fine Chemicals Co.: 3 patents #7 of 33Top 25%
NENec Electronics: 2 patents #384 of 1,789Top 25%
MCMitsui Mining & Smelting Co.: 1 patents #444 of 838Top 55%
Nec: 1 patents #7,928 of 14,502Top 55%
Tokyo, JP: #3,398 of 90,295 inventorsTop 4%
Overall (All Time): #92,222 of 4,157,543Top 3%
36 Patents All Time
Kiyotaka Tsuji has been granted 36 US patents while listed as an inventor at Panasonic. The first was granted in 1989 and the most recent in March 2024. Kiyotaka Tsuji ranks #92,222 of 4,157,543 US inventors in our database (top 2.2%). Patent records list Kiyotaka Tsuji in Tokyo, JP.

Patents per Year

Patents granted per year, 1989 to 2024Bar chart with a peak of 5 patents in 2012.peak 51989: 1 patents19891991: 1 patents2001: 1 patents20012003: 2 patents2004: 1 patents20042005: 1 patents2007: 1 patents20072009: 2 patents2011: 1 patents20112012: 5 patents2013: 3 patents20132014: 4 patents2015: 5 patents20152016: 2 patents2018: 2 patents20182021: 1 patents2023: 2 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–25 of 36 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11932836 Electric reaction measuring apparatus, electric reaction processing method, and recording medium Yumiko Kato 2024-03-19
11828751 Method for evaluating drug responsiveness and drug responsiveness evaluation system Yumiko Kato 2023-11-28
11674889 Culture state determination based on direction-dependent image information Yumiko Kato, Yoshihide Sawada, Taichi Sato 2023-06-13
10988518 Method for efficiently producing β myosin heavy chain in cardiac muscle cells differentiated from induced pluripotent stem cells derived from Homo sapiens Li Liu 2021-04-27
10107792 Cell potential measuring electrode assembly and method for measuring electric potential change of cell using the same Ken Shimono 2018-10-23
9934874 Storage medium management device, storage medium management method, storage medium, and storage medium management system 2018-04-03
9274995 Electronic apparatus 2016-03-01
9252189 Nonvolatile semiconductor memory element, nonvolatile semiconductor memory device, and method for manufacturing nonvolatile semiconductor memory device Satoru Fujii, Takumi Mikawa 2016-02-02
9105332 Variable resistance nonvolatile memory device Yuichiro Ikeda, Kazuhiko Shimakawa, Koji Katayama, Takumi Mikawa 2015-08-11
9026707 Electronic apparatus 2015-05-05
9019747 Nonvolatile semiconductor memory device and write method for the same 2015-04-28
8995171 Designing method of non-volatile memory device, manufacturing method of non-volatile memory device, and non-volatile memory device Yukio Hayakawa, Shinichi Yoneda, Akifumi Kawahara 2015-03-31
8953363 Nonvolatile semiconductor memory device and read method for the same Kazuhiko Shimakawa, Ryotaro Azuma 2015-02-10
8900965 Nonvolatile memory device manufacturing method Haruyuki Sorada, Takumi Mikawa, Kenji Tominaga 2014-12-02
8863203 Video server apparatus 2014-10-14
8837200 Nonvolatile semiconductor memory device and read method for the same Kazuhiko Shimakawa 2014-09-16
8811061 Memory device, semiconductor storage device, method for manufacturing memory device, and reading method for semiconductor storage device Takumi Mikawa 2014-08-19
8551853 Non-volatile semiconductor memory device and manufacturing method thereof Takumi Mikawa, Kenji Tominaga 2013-10-08
8399875 Nonvolatile memory element, and nonvolatile memory device Takumi Mikawa, Takashi Okada 2013-03-19 $78,000
8350245 Variable resistance element and nonvolatile semiconductor memory device using the same 2013-01-08 $53,000
8233933 Mobile communication system 2012-07-31
8227788 Nonvolatile memory element, and nonvolatile memory device Takumi Mikawa, Takashi Okada 2012-07-24 $67,000
8203936 Gateway unit 2012-06-19
8188833 Variable resistance element and manufacturing method of the same 2012-05-29 $54,000
8184645 Communication system, gateway device and adapter device Muneyuki Suzuki, Masashi Ishida 2012-05-22