Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
HK

Hidefumi Kanai — 3 Patents

Casio Computer Co.: 2 patents #935 of 1,970Top 50%
CCCasio Electronics Manufacturing Co.: 2 patents #29 of 107Top 30%
Nec: 1 patents #7,928 of 14,502Top 55%
Tokyo, JP: #36,070 of 90,295 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Hidefumi Kanai has been granted 3 US patents while listed as an inventor at Casio Computer Co.. The first was granted in 1987 and the most recent in May 2001. Hidefumi Kanai ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Hidefumi Kanai in Tokyo, JP.

Patents per Year

Patents granted per year, 1987 to 2001Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19872000: 1 patents20002001: 1 patents2001

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6233462 Portable terminal device for automatically controlling transmitting voice level and calling sound level 2001-05-15 $36,000
6032012 Developing device, image forming unit and color image forming apparatus, both having the developing device Takeo Hirono, Noriki Ono, Tatsumi Shimanari, Takao Yorifuji, Moriyuki Kouroku +2 more 2000-02-29
4634259 Apparatus for maintaining distinct edges between two colors in a two-color image forming device Mitsugu Oishi 1987-01-06