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USPTO Data Jan 1 1976 - Dec 30 2025
696 Patents
#9 in
#290 in Japan
#1,397 in the World
Seikosha Co., Ltd.
Forward Citations = 5,095
310 inventors:
Seikosha Co., Ltd.
Forward Citations = 5,095
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310 inventors (with patents filed for the assignee):
Ryoichi Kaneko (61 out of 65 patents)
Hisako Sugano (35 out of 57 patents)
Mitsuo Wada (26 out of 26 patents)
4. Sakae Tanaka (25 out of 33 patents)
5. Yoichi Seki (24 out of 51 patents)
6. Asao Takashima (22 out of 22 patents)
7. Yoshiaki Watanabe (21 out of 83 patents)
8. Masahiro Aikawa (21 out of 21 patents)
9. Akio Tajima (19 out of 91 patents)
10. Seiji Odaka (19 out of 21 patents)
11. Mikio Hayashi (17 out of 29 patents)
12. Hajime Oda (16 out of 40 patents)
13. Masanori Fujita (15 out of 50 patents)
14. Kazuo Akimoto (15 out of 25 patents)
15. Shigeru Tagami (15 out of 16 patents)
Core Competencies:
Clock Technology
Musical Tone Generation
Distance Measurement Devices
Electrostatic Capacitance Sensors
Ink Jet Heads
Printing Apparatus
Energy Saving Timepieces
Motor Driven Shutters
Wristwatch Innovations
Travel Alarm Clocks
Power Supply Control
Compression Generation for Fonts
696 patents:
Seikosha Co., Ltd. is a renowned Japanese company that specializes in manufacturing watches, electronic devices, and precision instruments. Dating back to its establishment in 1881, Seikosha has consistently strived for technological advancements and innovation in their products. Their commitment to superior quality and reliability has earned them a global reputation. With a wide range of timepieces and other cutting-edge products, Seikosha continues to be a preferred choice for customers worldwide.
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