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Sugatsune Kogyo Co., Ltd.

USPTO Granted Patents = 228

CIPO Patents = 2

EPO Patents = 23

Trademarks = 17

Forward Citations = 2,060

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81 inventors (with patents filed for the assignee):

Kazuyoshi Oshima (41 out of 42 patents)

Genichi Sato (24 out of 28 patents)

Harunobu Kubota (22 out of 22 patents)

4. Koushi Yamaguchi (18 out of 21 patents)

5. Kazuaki Kashiwaguma (14 out of 14 patents)

6. Katsuya Imai (11 out of 11 patents)

7. Shinichiro Koshikawa (10 out of 11 patents)

8. Manabu Hasegawa (9 out of 22 patents)

9. Yuuko Sakuma (9 out of 9 patents)

10. Ken Shinmura (8 out of 8 patents)

11. Mitsuru Sugiura (7 out of 7 patents)

12. Hideki Ogasawara (7 out of 7 patents)

13. Kenji Tomizawa (6 out of 26 patents)

14. Shingo Takamatsu (5 out of 25 patents)

15. Masaya Suzuki (5 out of 18 patents)

Core Competencies:

Damping Hinge

Door Guiding Device

Hinge Mounting Structure

Sliding Door Device

Biaxial Hinge

Retracting Device

Torque Hinge

Pushing Type Lid Device

Cable Holding Tool

Rotary Damper

Hanger for Small Articles

Door Opening Device

228 patents: Sort by Forward Citations

1. 12209450 - One-way damping hinge (2025-01-28),

2. 12158032 - Door guiding device (2024-12-03),

3. 12071796 - Hinge mounting structure (2024-08-27),

4. 12006750 - Hinge having damper and coil spring (2024-06-11),

5. 12006747 - Sliding door device (2024-06-11),

6. 11873673 - Single-axis hinge (2024-01-16),

7. 11815117 - Wall through fixture device (2023-11-14),

8. 11732517 - Damper device (2023-08-22),

9. 11459807 - Retaining device (2022-10-04),

10. 11408218 - Sliding door device (2022-08-09),

11. 11384581 - Door opening/closing apparatus and hinge (2022-07-12),

12. 11319739 - Stay (2022-05-03),

13. 11284729 - Damper device set and cooling and/or freezing showcase (2022-03-29),

14. 11180938 - Hinge (2021-11-23),

15. 11168502 - Door device (2021-11-09),

Sugatsune Kogyo Co., Ltd. is a leading manufacturer and distributor of high-quality architectural and industrial hardware. With over 85 years of experience, the company offers a wide range of innovative products such as hinges, slides, handles, locks, and more. Sugatsune focuses on providing durable, functional, and aesthetically pleasing solutions for various industries including furniture, cabinetry, architecture, marine, and transportation. Their commitment to excellence has made Sugatsune a trusted name in the industry, with a global customer base relying on their reliable products and outstanding customer service.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

228 Patents

#278 in Tokyo

#625 in Japan

#3,640 in the World

Sugatsune Kogyo Co., Ltd.

Forward Citations = 2,060

81 inventors:

Kazuyoshi Oshima (41 out of 42 patents)

Genichi Sato (24 out of 28 patents)

Harunobu Kubota (22 out of 22 patents)

4. Koushi Yamaguchi (18 out of 21 patents)

5. Kazuaki Kashiwaguma (14 out of 14 patents)

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