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USPTO Data Jan 1 1976 - Dec 30 2025
158 Patents
#363 in Tokyo
#804 in Japan
#5,076 in the World
Tombow Pencil Co., Ltd.
Forward Citations = 2,182
53 inventors:
Tombow Pencil Co., Ltd.
EPO Patents = 8
Trademarks = 41
Forward Citations = 2,182
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53 inventors (with patents filed for the assignee):
Kazunori Katami (47 out of 47 patents)
Kazuhiko Suzuki (30 out of 61 patents)
Shigeru Kimura (15 out of 58 patents)
4. Yoshinori Kouda (12 out of 12 patents)
5. Tsuyoshi Hasegawa (9 out of 37 patents)
6. Kenji Kobayashi (6 out of 104 patents)
7. Hiromichi Fujisawa (5 out of 5 patents)
8. Shunichi Taniguchi (4 out of 4 patents)
9. Kazuki Koda (4 out of 6 patents)
10. Yutaka Tamura (3 out of 3 patents)
11. Yasuo Murakoshi (3 out of 3 patents)
12. Hiroaki Masumoto (3 out of 3 patents)
13. Yukiko Oi (3 out of 3 patents)
14. Masashi Shinya (2 out of 2 patents)
15. Erika Mizutani (2 out of 2 patents)
Core Competencies:
Desktop Organizer
Ball Point Pen
Correction Tape Dispenser
Coating Film Transfer Tool
Pressure Sensitive Adhesive
Writing Instrument
Pressurized Pen
Multicolored Ballpoint Pen
Coating Transfer Device
Knock Type Eraser
Adhesive Transfer Tape
Cartridge Type Dispenser
158 patents:
Tombow Pencil Co., Ltd. is a Japanese company specializing in stationery products. Established in 1913, Tombow has a rich history of providing high-quality writing instruments, pencils, pens, and art supplies. With a commitment to innovative design and functionality, Tombow aims to inspire creativity and enhance productivity. Visit their website for a wide range of products and explore the world of precision writing and artistry.
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8 patents (EPO):
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