Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Masaaki Kitazawa — 5 Patents

DIDaikin Industries: 4 patents #820 of 2,957Top 30%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
NCNissin Kogyo Co.: 1 patents #171 of 334Top 55%
Ueda, JP: #59 of 298 inventorsTop 20%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Masaaki Kitazawa has been granted 5 US patents while listed as an inventor at Daikin Industries. The first was granted in 1998 and the most recent in July 2015. Masaaki Kitazawa ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Masaaki Kitazawa in Ueda, JP.

Patents per Year

Patents granted per year, 1998 to 2015Bar chart with a peak of 1 patents in 1998.peak 11998: 1 patents19982002: 1 patents20022010: 1 patents20102013: 1 patents20132015: 1 patents2015

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9086245 Heat exchanger Shigeharu Taira 2015-07-21
8397530 Heat exchanger, air conditioning apparatus, and method for manufacturing heat exchanger Takashi Doi, Tetsuya Yamashita, Shinji Nagaoka, Isao Ohgami 2013-03-19
7849709 Indoor unit of an air conditioner Yohei Takada, Hitoshi Kawashima, Mikio Ito 2010-12-14
6363967 Flow merging and dividing device and heat exchanger using the device Junichirou Tanaka 2002-04-02
5810456 Brake system for vehicle Hiromi Inagaki, Yoshimichi Kawamoto, Kazuya Sakurai, Wataru Saito 1998-09-22 $381,000