For the Inventor, By the Inventor

Enter assignee name

Toyo Tanso Co., Ltd.

USPTO Granted Patents = 124

EPO Patents = 55

Trademarks = 9

Forward Citations = 342

Loading Chart...

Loading Chart...

190 inventors (with patents filed for the assignee):

Tetsuro Tojo (30 out of 32 patents)

Satoru Nogami (17 out of 18 patents)

Jiro Hiraiwa (14 out of 14 patents)

4. Satoshi Torimi (13 out of 13 patents)

5. Osamu Yoshimoto (11 out of 11 patents)

6. Toshiaki Sogabe (10 out of 10 patents)

7. Tsuyoshi Matsumoto (9 out of 9 patents)

8. Yoshiaki Hirose (9 out of 9 patents)

9. Hitoshi Takebayashi (9 out of 9 patents)

10. Takahiro Morishita (8 out of 12 patents)

11. Norihito Yabuki (8 out of 8 patents)

12. Naoto Ohta (7 out of 7 patents)

13. Toshiharu Hiraoka (7 out of 7 patents)

14. Masato Shinohara (6 out of 6 patents)

15. Yoshio Shodai (6 out of 6 patents)

Core Competencies:

Supported Platinum Catalyst

Porous Carbon

Anammox Bacteria

Silicon Carbide

Epitaxial Growth

Expanded Graphite Sheet

Air Battery

Carbon Composite Material

Nitrogen-Containing Porous Carbon

Semiconductor Manufacturing

Heat Treatment Method

Graphite-Copper Composite

124 patents: Sort by Forward Citations

1. 12126031 - Supported platinum catalyst, cathode for fuel cell, fuel cell, and method for producing supported platinum catalyst (2024-10-22),

2. 11702344 - Method of producing porous carbon, and electrode and catalyst carrier containing porous carbon produced by the method (2023-07-18),

3. 11584651 - Porous carbon and method of manufacturing same (2023-02-21),

4. 11518698 - Microorganism immobilized carrier (2022-12-06),

5. 11427489 - Carrier for retaining anammox bacteria for use in wastewater treatment, anammox bacteria-adhered particle, and wastewater treatment apparatus using the carrier (2022-08-30),

6. 11286210 - Joined material and method of manufacturing same (2022-03-29),

7. 11261539 - Method for manufacturing reformed sic wafer, epitaxial layer-attached sic wafer, method for manufacturing same, and surface treatment method (2022-03-01),

8. 11235978 - Method of producing porous carbon, and electrode and catalyst carrier containing porous carbon produced by the method (2022-02-01),

9. D935425 - Susceptor for use in production of a semiconductor (2021-11-09),

10. 10718569 - Heat treat furnace jig (2020-07-21),

11. 10675611 - Carbon powder for fuel cell and catalyst, electrode catalyst layer, membrane electrode assembly, and fuel cell using the carbon powder for fuel cell (2020-06-09),

12. 10665485 - Heat treatment vessel for single-crystal silicon carbide substrate and etching method (2020-05-26),

13. 10665465 - Surface treatment method for SiC substrate (2020-05-26),

14. 10538691 - Expanded-graphite sheet (2020-01-21),

15. 10522386 - Susceptor and method for manufacturing same (2019-12-31),

TOYO TANSO CO., LTD. is a leading global supplier of carbon products, including graphite electrodes, fine carbon products, and high-performance materials. With over 70 years of experience, the company has established itself as a trusted provider in various industries such as semiconductor, automotive, and aerospace. TOYO TANSO focuses on innovation, quality, and customer satisfaction, striving to meet the diverse needs of its clients worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

124 Patents

#94 in Osaka

#962 in Japan

#6,278 in the World

Toyo Tanso Co., Ltd.

Forward Citations = 342

190 inventors:

Tetsuro Tojo (30 out of 32 patents)

Satoru Nogami (17 out of 18 patents)

Jiro Hiraiwa (14 out of 14 patents)

4. Satoshi Torimi (13 out of 13 patents)

5. Osamu Yoshimoto (11 out of 11 patents)

Please report any incorrect information to support@idiyas.com

Loading…