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For the Inventor, By the Inventor

Hyogo, Japan

Heishin Ltd.

USPTO Granted Patents = 25

% Expired Patents = 12.0


Trademarks = 1

Forward Citations = 18

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22 inventors (with patents filed for the assignee):

goldMedal Noriaki Sakakihara (7 out of 7 patents)

silverMedal Eiji Uetsuji (6 out of 6 patents)

bronzeMedal Nobuhisa Suhara (5 out of 5 patents)

4.  Yusuke Tanaka (4 out of 5 patents)

5.  Atsushi Tanito (2 out of 2 patents)

6.  Kei Tanaka (2 out of 2 patents)

7.  Takashi Sato (2 out of 8 patents)

8.  Takashi Hashima (2 out of 2 patents)

9.  Tetsuo Yamane (1 out of 1 patent)

10.  Masaki Nakazawa (1 out of 1 patent)

11.  Masaji Nakatani (1 out of 4 patents)

12.  Masaki Mori (1 out of 1 patent)

13.  Yoshihiro Sugino (1 out of 1 patent)

14.  Hideaki Wakizaka (1 out of 1 patent)

15.  Kunihiro Ichida (1 out of 1 patent)


Core Competencies:
Fluid Discharge System
Uniaxial Eccentric Screw Pump
Liquid Coating Apparatus
Fluid Feeding System
Accumulator
Liquid Transport Device
Fluid Application System
Variable Nozzle Device
Rotor Drive Mechanism
Stator
Molding System
Decreasing Pitches

25 patents:

1. 12472518 - Fluid discharge system (2025-11-18),
2. 12410792 - Uniaxial eccentric screw pump (2025-09-09),
3. 12338820 - Uniaxial eccentric screw pump (2025-06-24),
4. 12276280 - Uniaxial eccentric screw pump with radial adjustment of the stator (2025-04-14),
5. 11867172 - Uniaxial eccentric screw pump (2024-01-09),
6. 11648775 - Liquid coating apparatus (2023-05-16),
7. 11408420 - Stator and uniaxial eccentric screw pump (2022-08-09),
8. 11407155 - Fluid feeding system and molding system (2022-08-09),
9. 11110482 - Discharge system (2021-09-07),
10. 10408235 - Accumulator and fluid material discharge system (2019-09-10),
11. 10364813 - Liquid transport device with decreasing pitches (2019-07-30),
12. 10300503 - Fluid application system and fluid application method (2019-05-28),
13. 10240599 - Uniaxial eccentric screw pump (2019-03-26),
14. 10233922 - Axis eccentric screw pump with an increasing diameter rotor with a constant sectional area stator (2019-03-19),
15. 10233921 - Axis eccentric screw pump with decreasing sectional area of stator with a constant diameter rotor (2019-03-19),
Company Overview
Heishin Ltd., based in Hyogo, Japan, specializes in the development and manufacturing of advanced electronic components and systems. The company focuses on innovative solutions in the fields of telecommunications and industrial automation, providing high-quality products that enhance connectivity and operational efficiency. With a commitment to research and development, Heishin Ltd. aims to address the evolving needs of various industries, contributing to technological advancements and improved performance in their respective markets.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

25 Patents

#36 in Hyogo

#2,572 in Japan

#25,730 in the World

Hyogo, JP
Hyogo, Japan

Heishin Ltd.

Forward Citations = 18

22 inventors:

goldMedal Noriaki Sakakihara (7 out of 7 patents)

silverMedal Eiji Uetsuji (6 out of 6 patents)

bronzeMedal Nobuhisa Suhara (5 out of 5 patents)

4.  Yusuke Tanaka (4 out of 5 patents)

5.  Atsushi Tanito (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Heishin Ltd.. Retrieved from https://idiyas.com/company/heishin

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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