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For the Inventor, By the Inventor

Nagoya, Japan

Shachihata Inc.


USPTO Granted Patents = 74


Trademarks = 26

Forward Citations = 486

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29 inventors (with patents filed for the assignee):

goldMedal Masaki Kida (32 out of 35 patents)

silverMedal Motohide Imaizumi (32 out of 32 patents)

bronzeMedal Dan Harden (11 out of 56 patents)

4.  Eiji Abe (6 out of 6 patents)

5.  Masayoshi Uchida (6 out of 6 patents)

6.  Tomohiro Kageyama (4 out of 4 patents)

7.  Takuya Koide (3 out of 3 patents)

8.  Takeyuki Kamiyama (3 out of 3 patents)

9.  Shiro Hayashi (3 out of 5 patents)

10.  Kaoru Suto (3 out of 3 patents)

11.  Takayuki Mitsuya (2 out of 2 patents)

12.  Hirotoshi Ishikawa (2 out of 2 patents)

13.  Hirofumi Kondo (2 out of 2 patents)

14.  Shogo Ichise (2 out of 2 patents)

15.  Takahiro Higuchi (2 out of 2 patents)


Core Competencies:
Marking Device
Self-Inking Stamp
Seal Carving Apparatus
Thermal Carving
Stamp Molding Machine
Porous Stamp Assembly
Changeable Character Stamp
Endless Print Belt
Rotary Stamp
Ink Tank
Stamp Pad
Felt Pen

74 patents:

1. D1131643 - Ink pack for ink refilling device (2026-06-23),
2. 12558772 - Marking device (2026-02-24),
3. D1073794 - Marking pen (2025-05-06),
4. D1030860 - Stamp (2024-06-11),
5. D950614 - Laser beam machine (2022-05-03),
6. D902680 - Scissors (2020-11-24),
7. 10832301 - System and method for stamp ordering and thermal carving (2020-11-10),
8. D900210 - Stamp (2020-10-27),
9. D899512 - Stamp (2020-10-20),
10. D896882 - Stamp (2020-09-22),
11. D853475 - Stamp (2019-07-09),
12. 10183480 - Seal surface carving apparatus (2019-01-22),
13. 10029396 - Seal carving apparatus and thermal carving machine (2018-07-24),
14. 9993972 - Seal carving apparatus and seal carving method (2018-06-12),
15. 9975367 - Reverse type stamp (2018-05-22),
Company Overview
Shachihata Inc., headquartered in Nagoya, Japan, specializes in innovative stamp technology, focusing on the development and manufacturing of marking devices. The company is renowned for its self-inking stamps, seal carving apparatus, and advanced thermal carving techniques. Shachihata also produces stamp molding machines and porous stamp assemblies, catering to a diverse range of marking needs. With a commitment to quality and innovation, the company continues to lead in the field of customizable and efficient stamping solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

74 Patents

#20 in Nagoya

#1,366 in Japan

#10,131 in the World

Nagoya, JP
Nagoya, Japan

Shachihata Inc.

Forward Citations = 486

29 inventors:

goldMedal Masaki Kida (32 out of 35 patents)

silverMedal Motohide Imaizumi (32 out of 32 patents)

bronzeMedal Dan Harden (11 out of 56 patents)

4.  Eiji Abe (6 out of 6 patents)

5.  Masayoshi Uchida (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Shachihata Inc.. Retrieved from https://idiyas.com/company/shachihata

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]
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