Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Makoto Namekawa — 8 Patents

AEAlpine Electronics: 7 patents #30 of 637Top 5%
ACAkai Electric Co.: 1 patents #6 of 21Top 30%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
Iwaki, JP: #104 of 693 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Makoto Namekawa has been granted 8 US patents while listed as an inventor at Alpine Electronics. The first was granted in 1986 and the most recent in April 1995. Makoto Namekawa ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Makoto Namekawa in Iwaki, JP.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5410606 Noise canceling method Kenji Imai, Tetsu Kanamori, Syunichi Imanishi, Hideki Sato, Masaichi Akiho +4 more 1995-04-25 $51,000
5335264 Method and apparatus for monitoring sound within a vehicle by telephone 1994-08-02
4945556 Method of locking function of mobile telephone system 1990-07-31
4905271 Method of preventing auto theft 1990-02-27
4860335 Method for notifying of a call arrival 1989-08-22
4821309 Method of alarm to prevent vehicle thefts 1989-04-11
4809316 Method for identifying operation modes of an antitheft system 1989-02-28
4604747 Error correcting and controlling system Ken Onishi, Masayuki Ishida, Masakazu Shirozu, Toshikatsu Takedomi, Yukihiko Haikawa 1986-08-05