% Expired Patents = 90.0

EPO Patents = 2

Forward Citations = 205

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5 inventors (with patents filed for the assignee):

Yasuji Ogawa (9 out of 14 patents)

Jun Sakai (1 out of 45 patents)

Kenji Tsunezaki (1 out of 1 patent)

4. Kouki Shimiya (1 out of 1 patent)

5. Akio Hashimoto (1 out of 1 patent)

6. Yasuji c/o Xiroku Inc Ogawa (0 patent)

10 patents: Sort by Forward Citations

1. 10088946 - Coordinate detection device having looped drive lines and detection lines (2018-10-02),

2. 8330726 - Position detection apparatus using area image sensor (2012-12-11),

3. 7800362 - Pressure distribution detector utilizing electromagnetic coupling (2010-09-21),

4. 7703342 - Pressure distribution detection device (2010-04-27),

5. 7703341 - Pressure detecting apparatus utilizing electromagnetic coupling (2010-04-27),

6. 7477243 - Apparatus for controlling the shift of virtual space and method and program for controlling same (2009-01-13),

7. 7414617 - Coordinate input device working with at least display screen and desk-top surface as the pointing areas thereof (2008-08-19),

8. 7202860 - Coordinate input device working with at least display screen and desk-top surface as the pointing areas thereof (2007-04-10),

9. 6714311 - Position detection device, position pointing device, position detecting method and pen-down detecting method (2004-03-30),

10. 6567078 - Handwriting communication system and handwriting input device used therein (2003-05-20),

Company Overview

Xiroku, Inc. is a technology company based in Ibaraki, Japan, specializing in advanced software solutions and innovative technologies. The organization focuses on developing cutting-edge applications that enhance user experience and streamline processes across various industries. With a commitment to research and development, Xiroku aims to push the boundaries of technology, particularly in areas such as artificial intelligence and data analytics, contributing to the digital transformation of businesses and enhancing operational efficiency.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#32 in Ibaraki

#4,400 in Japan

#55,986 in the World

Ibaraki, Japan

Xiroku, Inc.

Forward Citations = 205

5 inventors:

Yasuji Ogawa (9 out of 14 patents)

Jun Sakai (1 out of 45 patents)

Kenji Tsunezaki (1 out of 1 patent)

4. Kouki Shimiya (1 out of 1 patent)

5. Akio Hashimoto (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Xiroku, Inc.. Retrieved from https://idiyas.com/company/xiroku

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]

2 patents (EPO):

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]