Company Badge
USPTO Data Jan 1 1976 - Oct 27 2026
326 Patents
#263 in Tokyo
#512 in Japan
#2,771 in the World
Tokyo Seimitsu Co., Ltd.
Forward Citations = 2,268
262 inventors:
Tokyo Seimitsu Co., Ltd.
Calculating rank
% Expired Patents = 30.1
CIPO Patents = 1
EPO Patents = 29
Trademarks = 7
Forward Citations = 2,268
Loading Chart...
Loading Chart...
262 inventors (with patents filed for the assignee):
Takashi Fujita (24 out of 165 patents)
Minoru Numoto (23 out of 23 patents)
Takao Inaba (17 out of 17 patents)
4. Masayuki Azuma (14 out of 16 patents)
5. Katsuo Honda (13 out of 13 patents)
6. Hideki Morii (10 out of 10 patents)
7. Masaki Kanazawa (10 out of 10 patents)
8. Minoru Ametani (10 out of 10 patents)
9. Kenji Sakai (10 out of 10 patents)
10. Shozo Katamachi (9 out of 9 patents)
11. Masayuki Kuwabara (8 out of 10 patents)
12. Toshihiko Ishikawa (8 out of 8 patents)
13. Yasushi Katagiri (8 out of 8 patents)
14. Ichiro Katayama (8 out of 8 patents)
15. Takeshi Kagamida (8 out of 8 patents)
Core Competencies:
Wafer Processing
Shape Measurement
Alignment Methods
Temperature Control
Prober
Dicing Methods
Surface Measurement
Laser Machining
Inspection Apparatus
Calibration Method
Grinding Apparatus
Displacement Detector
326 patents:
Company Overview
Tokyo Seimitsu Co., Ltd. is a prominent player in the semiconductor equipment industry, specializing in advanced wafer processing technologies. The company focuses on developing precision instruments for shape measurement, alignment methods, and temperature control, which are essential for the fabrication of semiconductor devices. Additionally, Tokyo Seimitsu is known for its innovative solutions in probing, dicing methods, and surface measurement, leveraging laser machining to enhance manufacturing efficiency. Headquartered in Tokyo, Japan, the company serves a global market with its cutting-edge technologies.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tokyo Seimitsu Co., Ltd.. Retrieved from https://idiyas.com/company/tokyo-seimitsu-company
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]
29 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]