Company Badge
USPTO Data Jan 1 1976 - Oct 20 2026
1 Patents
#171 in Chiba
#15,759 in Japan
Masatoshi Hagiwara
Forward Citations = 0
4 inventors:
Masatoshi Hagiwara
% Expired Patents = 100.0
CIPO Patents = 1
Forward Citations = 0
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4 inventors (with patents filed for the assignee):
Masatoshi Hagiwara (1 out of 19 patents)
Takamitsu Hosoya (1 out of 25 patents)
Takeshi Fukuhara (1 out of 3 patents)
4. Masaaki Suzuki (1 out of 26 patents)
5. Tadashi Toshioka (4 patents)
6. Hiroyoshi Hidaka (0 patent)
7. Isao Umezawa (0 patent)
8. Osamu Sakuma (0 patent)
9. Tomohiko Ishikawa (0 patent)
10. Kenji Naitoh (0 patent)
11. Masayuki Yuasa (0 patent)
12. Tadashi Morita (0 patent)
13. Masatoshi Hagiwara (0 patent)
14. Tsutomu Inoue (0 patent)
15. Takashi Inaba (0 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Masatoshi Hagiwara. Retrieved from https://idiyas.com/company/masatoshi-hagiwara
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]
1 patent (CIPO):
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]
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]