% Expired Patents = 33.3

Forward Citations = 105

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6 inventors (with patents filed for the assignee):

Seiji Suzuki (1 out of 130 patents)

Shigeru Yagi (1 out of 74 patents)

Takashi Kurita (1 out of 1 patent)

4. Shizuo Yamamoto (1 out of 1 patent)

5. Shigeki Takaya (1 out of 1 patent)

6. Gilles Van Ruymbeke (1 out of 3 patents)

3 patents: Sort by Forward Citations

1. 7173232 - Light detection device and mounting method thereof (2007-02-06),

2. 6800240 - Method for manufacturing ceramic resistor (2004-10-05),

3. 6380930 - Laptop touchpad with integrated antenna (2002-04-30),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#123 in Nagano

#8,929 in Japan

Nagano, Japan

K-Tech Devices Corporation

Forward Citations = 105

6 inventors:

Seiji Suzuki (1 out of 130 patents)

Shigeru Yagi (1 out of 74 patents)

Takashi Kurita (1 out of 1 patent)

4. Shizuo Yamamoto (1 out of 1 patent)

5. Shigeki Takaya (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: K-Tech Devices Corporation. Retrieved from https://idiyas.com/company/k-tech-devices

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]