Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Munemitsu Hamada — 9 Patents

Tdk: 9 patents #675 of 3,796Top 20%
Tokyo, JP: #17,063 of 90,295 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Munemitsu Hamada has been granted 9 US patents while listed as an inventor at Tdk. The first was granted in 1989 and the most recent in August 2002. Munemitsu Hamada ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Munemitsu Hamada in Tokyo, JP.

Patents per Year

Patents granted per year, 1989 to 2002Bar chart with a peak of 2 patents in 1992.peak 21989: 1 patents19891991: 1 patents19911992: 2 patents19921998: 1 patents19981999: 1 patents19992001: 1 patents20012002: 2 patents2002

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6432325 Electrode Akira Takeishi, Makoto Takahashi, Dai Matsuoka, Masatada Yodogawa, Hiraku Harada 2002-08-13 $229,000
6383416 Electron-emitting material and preparing process Akira Takeishi, Makoto Takahashi, Dai Matsuoka, Masatada Yodogawa, Hiraku Harada 2002-05-07 $223,000
6172453 Discharge lamp electrode Masaru Fukuda, Haruo Taguchi, Shoichi Iwaya, Hiroaki Abe 2001-01-09 $98,000
5982088 Ceramic cathode fluorescent discharge lamp Akira Takeishi, Haruo Taguchi, Takeshi Masuda, Yasutoshi Yamaguchi 1999-11-09 $47,000
5793276 Organic PTC thermistor Hisanao Tosaka, Minoru Takaya, Shigeru Moriya, Hisashi Kobuke 1998-08-11 $149,000
5091820 Ceramic piezoelectric element with electrodes formed by reduction Shouichi Iwaya, Hitoshi Masumura 1992-02-25 $12,000
5084426 Semiconductive ceramic composition Shoichi Iwaya, Hitoshi Masumura, Haruo Taguchi, Tomohiro Sogabe, Shigeya Takahashi +1 more 1992-01-28 $35,000
4987515 Ceramic capacitor with electrodes formed by reduction Shouichi Iwaya, Hitoshi Masumura 1991-01-22 $12,000
4808883 Discharge lamp device having semiconductor ceramic cathode Shouichi Iwaya, Hitoshi Masumura 1989-02-28 $24,000