Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Noboru Katohno — 12 Patents

Hitachi: 12 patents #3,473 of 28,497Top 15%
HCHitachi Automotive Engineering Co.: 1 patents #156 of 314Top 50%
HIHitachi Video Engineering, Incorporated: 1 patents #69 of 181Top 40%
Mito, JP: #72 of 606 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Noboru Katohno has been granted 12 US patents while listed as an inventor at Hitachi. The first was granted in 1985 and the most recent in March 1998. Noboru Katohno ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Noboru Katohno in Mito, JP.

Patents per Year

Patents granted per year, 1985 to 1998Bar chart with a peak of 3 patents in 1994.peak 31985: 1 patents19851988: 1 patents19881989: 1 patents19891990: 1 patents19901991: 1 patents19911992: 1 patents19921993: 1 patents19931994: 3 patents19941997: 1 patents19971998: 1 patents1998

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5734537 Tape guide structure of rotary head drum in recording/reproduction apparatus and method of machining the same Seiji Ono, Kenmei Masuda, Hidekazu Takeda, Atsushi Inoue, Nobuo Masuoka +3 more 1998-03-31 $157,000
5703737 Magnetic recording reproduction apparatus with improved adjustment characteristics for audio-control head Yoshihisa Tsurumi, Chikara Iwama 1997-12-30 $149,000
5301073 Take-up pulley with torque-limiting mechanism for magnetic recording and reproducing apparatus Masaki Yono, Yasuhiro Hashiguchi 1994-04-05 $82,000
5296994 Magnetic tape guide mechanism for magnetic recording/reproducing apparatus Yasuhiro Hashiguchi, Masabumi Katsunuma 1994-03-22 $65,000
5291350 Magnetic recording and reproducing apparatus Yasuhiro Hashiguchi 1994-03-01 $87,000
5262910 Cassette loading device for enabling horizontal transfer of the cassette Yasuhiro Hashiguchi, Kazumasa Inami 1993-11-16 $74,000
5170304 Device for cleaning rotary magnetic head of magnetic recording and reproducing device and method of controlling same Hiroyoshi Matsumoto, Takeo Ohkouchi 1992-12-08 $56,000
5016130 Retaining device for a magnetic head Yasuhiro Hashiguchi, Yoshihiro Shibata 1991-05-14 $54,000
4912578 Tape loading mechanism for magnetic recording and/or playback equipments Koji Fukuda 1990-03-27 $33,000
4809115 Magnetic recording and reproducing apparatus Yoshihiro Shibata, Hajime Yokota 1989-02-28 $24,000
4794477 Cassette loading mechanism of magnetic recording and/or reproducing apparatus Yasuhiro Hashiguchi, Yoshihiro Shibata 1988-12-27 $47,000
4499512 Reel drive system of magnetic recording and reproducing apparatus Masashi Yoshida, Hajime Yokota, Masao Okayama 1985-02-12 $73,000