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USPTO Patent Rankings Data through Dec 31, 2025
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Keiichi Kondou — 12 Patents

Panasonic: 8 patents #3,332 of 21,108Top 20%
Toyota: 6 patents #4,861 of 26,838Top 20%
SHShiroki: 1 patents #86 of 172Top 50%
TCToyoda Gosei Co.: 1 patents #1,271 of 2,296Top 60%
Miyoshi, JP: #225 of 2,464 inventorsTop 10%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Keiichi Kondou has been granted 12 US patents while listed as an inventor at Panasonic. The first was granted in 2011 and the most recent in December 2025. Keiichi Kondou ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Keiichi Kondou in Miyoshi, JP.

Patents per Year

Patents granted per year, 2011 to 2023Bar chart with a peak of 2 patents in 2011.peak 22011: 2 patents20112014: 2 patents20142015: 1 patents20152016: 1 patents20162017: 1 patents20172019: 1 patents20192020: 2 patents20202023: 1 patents2023

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12503019 Vehicle seat Kahoru Niimi, Yuki KAMIYA 2025-12-23
11628792 Vehicle seat Mitsuyoshi Ohno, Shohei Funaki, Hiroyuki Tomita, Takashi Iida, Shigemi Mase 2023-04-18 $451,000
10714761 Catalyst layer for fuel cell, and fuel cell Kazuya Yamasaki, Hitoshi Ishimoto, Masashi Shoji 2020-07-14
10707494 Gas diffusion layer for fuel cell, method for manufacturing said layer, membrane-electrode assembly, and fuel cell Tsutomu Kawashima, Masashi Shoji, Koji Ogawa 2020-07-07
10388966 Electrode catalyst material, and fuel cell Kazuya Yamasaki, Hitoshi Ishimoto 2019-08-20
9597980 Conveyance seat Kentarou Morishita, Tomohiro Enokijima, Hideyoshi Kishida, Masayuki Kanehira, Eiichiro Tsuji 2017-03-21 $686,000
9315121 Vehicle seat recliner Tomohiro Enokijima, Eiichiro Tsuji 2016-04-19 $919,000
8958197 Electrode for capacitor, process for producing same, and capacitor including the electrode Hideki Shimamoto, Yukihiro Shimasaki, Tomohiro Okuzawa 2015-02-17
8693166 Capacitor Hideki Shimamoto, Yukihiro Shimasaki 2014-04-08
8654508 Electrochemical capacitor and electrode used therein Toshiro Kume, Tomohiro Okuzawa 2014-02-18
8085525 Electric double layer capacitor including current collector having a plurality of apertures therein Motohiro Sakata, Hideki Shimamoto 2011-12-27 $64,000
8034642 Method for pretreating electrochemical capacitor negative electrode, method for manufacturing the electrochemical capacitor negative electrode, and method for manufacturing electrochemical capacitor using the method for manufacturing the electrochemical capacitor negative electrode Susumu Nomoto, Hideki Shimamoto 2011-10-11 $64,000

Frequent Collaborators

Hideki Shimamoto4 shared
Tomohiro Okuzawa2 shared
Yukihiro Shimasaki2 shared
Hitoshi Ishimoto2 shared
Eiichiro Tsuji2 shared
Kazuya Yamasaki2 shared

Nearby-Ranked Inventors

John Patrick Hickey, III12
Gregory Lutter12
Josselin Xavier COUPARD12
Xuan Li12
Nandana Mihindukulasooriya12
Keiichi Matsuda12
Robert Imig12
Peter Mage12
Sze Ping Ching12