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USPTO Patent Rankings Data through Dec 31, 2025
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Hajime Iguchi — 7 Patents

Casio Computer Co.: 7 patents #358 of 1,970Top 20%
Fuchu, JP: #173 of 926 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Hajime Iguchi has been granted 7 US patents while listed as an inventor at Casio Computer Co.. The first was granted in 1997 and the most recent in May 2025. Hajime Iguchi ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Hajime Iguchi in Fuchu, JP.

Patents per Year

Patents granted per year, 1997 to 2025Bar chart with a peak of 1 patents in 1997.peak 11997: 1 patents19972001: 1 patents20012002: 1 patents20022016: 1 patents20162020: 1 patents20202024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12314012 Timepiece and timepiece case Chieko TAJIMA, Kazuma KOBAYASHI 2025-05-27
12007721 Timepiece and timepiece case Chieko TAJIMA, Kazuma KOBAYASHI 2024-06-11
10627781 Switch device and timepiece Tatsumi ICHIMURA 2020-04-21
9336967 Switch device and timepiece Naohiko Sakurazawa, Yukio FUNABARA 2016-05-10
6435709 Band and wrist device Tadao Hirano, Yuji Doi, Masaaki Hirai 2002-08-20
6238083 Band and wrist device Tadao Hirano, Yuji Doi, Masaaki Hirai 2001-05-29
5668784 Watch band attachment mechanism — 1997-09-16

Frequent Collaborators

Kazuma KOBAYASHI2 shared
Tadao Hirano2 shared
Chieko TAJIMA2 shared
Yuji Doi2 shared
Masaaki Hirai2 shared
Tatsumi ICHIMURA1 shared

Nearby-Ranked Inventors

Yu Du7
WOOSEUP YOUM7
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Timothy Batty7
Ty Hessler7
Justin Cole7
Xiaorong Chen7