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USPTO Data Jan 1 1976 - Jan 6 2026
58 Patents
#650 in Tokyo
#1,541 in Japan
#12,107 in the World
Senju Sprinkler Company Limited
Forward Citations = 529
31 inventors:
Senju Sprinkler Company Limited
EPO Patents = 1
Trademarks = 2
Forward Citations = 529
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31 inventors (with patents filed for the assignee):
Yasuaki Koiwa (34 out of 36 patents)
Hisayoshi Ohkoshi (6 out of 6 patents)
Yutaka Tateishi (5 out of 5 patents)
4. Masakatsu Kikuchi (3 out of 3 patents)
5. Koki Sato (3 out of 56 patents)
6. Takashi Takeuchi (3 out of 39 patents)
7. Yukinori Karihara (3 out of 3 patents)
8. Kazuma Ito (3 out of 5 patents)
9. Yoshiki Sasaki (3 out of 5 patents)
10. Masaharu Chiba (3 out of 3 patents)
11. Yukihiro Kon (2 out of 2 patents)
12. Masashi Murakami (2 out of 6 patents)
13. Yuki Iizawa (2 out of 2 patents)
14. Tetsuro Kikuchi (2 out of 6 patents)
15. Yuta Watanabe (2 out of 5 patents)
Core Competencies:
Sprinkler Head
Deflector
Protective Cap
Wrench Socket
Water Flow Detection
Fire Extinguishing Equipment
Spanner Wrench
Heat Collector Assembly
Sprinkler Accessory
Pipe Joint
Sprinkler Cover Plate
Connection Structure
58 patents:
Senju Sprinkler Company Limited is a leading manufacturer and supplier of fire sprinkler systems. We specialize in the development, production, and distribution of high-quality sprinkler products and solutions for the global market. With a strong commitment to safety and innovation, we ensure that our products adhere to the highest industry standards. Our range of sprinkler systems includes residential, commercial, and industrial applications, designed to provide reliable fire protection. Visit our website to learn more about our products and services.
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1 patent (EPO):
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