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Sango Co., Ltd.

USPTO Granted Patents = 66

% Expired Patents = 30.3

EPO Patents = 6

Forward Citations = 449

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83 inventors (with patents filed for the assignee):

Tohru Irie (16 out of 16 patents)

Masashi Ota (8 out of 8 patents)

Kentaro Nozu (5 out of 5 patents)

4. Akinobu Morikawa (5 out of 5 patents)

5. Kentaro Nodu (5 out of 5 patents)

6. Yukinori Suzuki (4 out of 15 patents)

7. Kouichi Izuhara (3 out of 3 patents)

8. Makoto Daifuku (3 out of 3 patents)

9. Yoshihiro Tsuchiya (2 out of 2 patents)

10. Kazunari Matsuura (2 out of 3 patents)

11. Ichiro Tsumagari (2 out of 14 patents)

12. Ryo Shibuya (2 out of 10 patents)

13. Masahiro Shirai (2 out of 2 patents)

14. Atsushi Koide (2 out of 7 patents)

15. Yasushi Miyata (2 out of 2 patents)

Core Competencies:

Exhaust Heat Recovery

Pipe Bending

Lithium Secondary Battery

Burner

Catalytic Converter

Muffler

Heat Exchanger

Hardening Apparatus

Support Structure

Molding Die

Emission System

Spindle Mechanism

66 patents: Sort by Forward Citations

1. 12214395 - Extrusion molding method for differential thickness pipe and extrusion molding apparatus for differential thickness pipe (2025-02-04),

2. 12158224 - Housing type pipe joint (2024-12-03),

3. 11384678 - Heat insulating cover for exhaust device (2022-07-12),

4. 11047289 - Support structure for exhaust system part (2021-06-29),

5. 10941935 - Evaporation type burner (2021-03-09),

6. 10704494 - Heat recovery structure (2020-07-07),

7. 10684008 - Evaporation type burner (2020-06-16),

8. 10675667 - Pipe bend die unit (2020-06-09),

9. 10662490 - Hardening apparatus for a long member, and a hardening method for a long member (2020-05-26),

10. D879153 - Exhaust heat recovery apparatus for automobiles (2020-03-24),

11. 10253671 - Heat exchanger, and exhaust heat recovery apparatus having the heat exchanger (2019-04-09),

12. 10213819 - Press forming method (2019-02-26),

13. 9901968 - Pipe bend die unit, and pipe bending apparatus having the unit (2018-02-27),

14. 9809092 - Door impact beam for vehicle (2017-11-07),

15. 9707610 - Pipe bend die unit, and pipe bending apparatus having the unit (2017-07-18),

SANGO CO., LTD. is a leading global technology company specializing in the development and manufacturing of innovative electronic products. With a strong focus on quality and customer satisfaction, SANGO offers a wide range of cutting-edge solutions for various industries including consumer electronics, automotive, and telecommunications. Our dedicated team of professionals is committed to delivering superior products that meet the highest standards of performance and reliability.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

Sango Co., Ltd.

66 Patents

#22 in Nagoya

#1,456 in Japan

#11,144 in the World

Sango Co., Ltd.

Forward Citations = 449

83 inventors:

Tohru Irie (16 out of 16 patents)

Masashi Ota (8 out of 8 patents)

Kentaro Nozu (5 out of 5 patents)

4. Akinobu Morikawa (5 out of 5 patents)

5. Kentaro Nodu (5 out of 5 patents)

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