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

Kenji Date — 18 Patents

Denso: 6 patents #2,220 of 11,792Top 20%
Hitachi: 6 patents #6,585 of 28,497Top 25%
HMHmy: 3 patents #1 of 11Top 10%
Panasonic: 3 patents #7,659 of 21,108Top 40%
SCSanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Kasai, JP: #452 of 5,842 inventorsTop 8%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
Kenji Date has been granted 18 US patents while listed as an inventor at Denso. The first was granted in 1994 and the most recent in July 2019. Kenji Date ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Kenji Date in Kasai, JP.

Patents per Year

Patents granted per year, 1994 to 2019Bar chart with a peak of 4 patents in 2007.peak 41994: 2 patents19941996: 1 patents2001: 2 patents20012003: 1 patents2004: 1 patents20042005: 1 patents2007: 4 patents20072008: 1 patents2011: 1 patents20112012: 1 patents2016: 1 patents20162017: 1 patents2019: 1 patents2019

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10367181 Lithium-ion battery Yoshinori Shishida, Takao Kuromiya 2019-07-30
9620767 Electrode plate for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery including the same, and method for manufacturing the same Motoki Kinugawa 2017-04-11
9312542 Electrode plate for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery including the same, and method for manufacturing the same Motoki Kinugawa 2016-04-12
8330368 Plasma display panel and manufacturing method thereof SHUZO TSUCHIDA, Kazuto Fukuda 2012-12-11 $67,000
7946898 Method for producing dielectric layer for plasma display panel Kazuto Fukuda, Yasuhiro Asaida 2011-05-24 $69,000
7438238 Gaseous fuel injector Masaaki Kato 2008-10-21
7284712 Injector having structure for controlling nozzle needle Kenji Funai, Masatoshi Kuroyanagi, Akira Shibata 2007-10-23
7252069 Gas fuel engine and control method for the same Masaaki Kato 2007-08-07
7207858 Method for manufacturing plasma display panel Akihiro Matsuda, Fumio Sakamoto, Koji Aoto 2007-04-24 $301,000
7195735 Porous sintered metal and filter thereof, and method for producing porous sintered metal Masumi Nakai 2007-03-27 $296,000
6964817 Porous sintered metal and filter thereof, and method for producing porous sintered metal Masumi Nakai 2005-11-15 $188,000
6811105 Fuel injection nozzle Masaaki Kato 2004-11-02
6644269 Fuel injection system having pre-injection and main injection Masaaki Kato, Toshiyuki Yoda 2003-11-11
6306196 Sintered Ti-system material product derived from injection molding of powder material and producing method thereof Yutaka Kubo, Yoshifumi Morimoto 2001-10-23 $211,000
6302080 Fuel injection system having pre-injection and main injection Masaaki Kato, Toshiyuki Yoda 2001-10-16
5484372 Compound roll and method of producing same Ryosaku Nawata, Toshiyuki Hattori 1996-01-16 $127,000
5355932 Method of producing a compound roll Ryosaku Nawata, Toshiyuki Hattori 1994-10-18 $104,000
5305522 Method of producing a compound roll Ryosaku Nawata, Kiyoshi Furushima 1994-04-26 $86,000