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For the Inventor, By the Inventor

Hiroshima, Japan

Toda Kogyo Corporation


USPTO Granted Patents = 388



Trademarks = 1

Forward Citations = 1,946

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330 inventors (with patents filed for the assignee):

goldMedal Kazuyuki Hayashi (80 out of 82 patents)

silverMedal Hiroko Morii (73 out of 75 patents)

bronzeMedal Keisuke Iwasaki (44 out of 46 patents)

4.  Yasuyuki Tanaka (34 out of 34 patents)

5.  Nanao Horiishi (31 out of 33 patents)

6.  Yasuhiko Fujii (28 out of 30 patents)

7.  Hideaki Sadamura (27 out of 27 patents)

8.  Koso Aoki (26 out of 26 patents)

9.  Kenji Okinaka (23 out of 23 patents)

10.  Hiromitsu Misawa (23 out of 24 patents)

11.  Yoji Okano (20 out of 20 patents)

12.  Eiichi Kurita (19 out of 20 patents)

13.  Takanori Doi (18 out of 18 patents)

14.  Masayuki Uegami (18 out of 18 patents)

15.  Norimichi Nagai (18 out of 18 patents)


Core Competencies:
Sodium Ferrite
Ferrite Particles
Non-Aqueous Electrolyte Battery
Lithium Nickelate
Rare Earth Magnet
Hydrotalcite Particles
Positive Electrode Active Material
Wireless IC Tag
Ferrite Ceramics
Manganese Nickel Composite Oxide
Magnetic Antenna
Conductive Coating Film

388 patents:

1. 12505942 - Ferrite sheet strip, and antenna device and cable using ferrite sheet strip (2025-12-23),
2. 12502637 - Solid recovery material for carbon dioxide and method for producing same (2025-12-23),
3. 12421132 - Sodium ferrite particle powder and production method thereof (2025-09-23),
4. 12246475 - Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same (2025-03-11),
5. 12183921 - Li—Ni composite oxide particles and non-aqueous electrolyte secondary battery (2024-12-31),
6. 11942701 - Module substrate antenna and module substrate using same (2024-03-26),
7. 11873230 - Hydrotalcite particles, method for producing hydrotalcite particles, resin stabilizer containing hydrotalcite particles, and resin composition containing hydrotalcite particles (2024-01-16),
8. 11823823 - Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same (2023-11-21),
9. 11820055 - Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same (2023-11-21),
10. 11688534 - Process for producing R-T-B-based rare earth magnet particles, R-T-B-based rare earth magnet particles, and bonded magnet (2023-06-27),
11. 11552292 - Lithium nickelate-based positive electrode active substance particles and process for producing the same, and non-aqueous electrolyte secondary battery (2023-01-10),
12. 11551851 - Module substrate antenna, and module substrate mounting the same (2023-01-10),
13. 11492266 - Processes for preparing positive electrode active substance for non-aqueous electrolyte secondary batteries (2022-11-08),
14. 11228106 - Electronic component, antenna and RF tag (2022-01-18),
15. 11127940 - Positive electrode active material particle powder for non-aqueous electrolyte secondary battery, method for producing same, and non-aqueous electrolyte secondary battery (2021-09-21),
TODA KOGYO CORPORATION is a leading Japanese manufacturer specializing in the production of automotive components. With a strong focus on research and development, they offer a wide range of products, including exhaust systems, engine valves, hydraulic components, and aluminum casting parts. With over 70 years of experience, TODA KOGYO CORPORATION has built a reputation for delivering high-quality solutions to their customers in the automotive industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

388 Patents

#3 in Hiroshima, 729-3431

#434 in Japan

#2,319 in the World

...
Hiroshima, Japan

Toda Kogyo Corporation

Forward Citations = 1,946

330 inventors:

goldMedal Kazuyuki Hayashi (80 out of 82 patents)

silverMedal Hiroko Morii (73 out of 75 patents)

bronzeMedal Keisuke Iwasaki (44 out of 46 patents)

4.  Yasuyuki Tanaka (34 out of 34 patents)

5.  Nanao Horiishi (31 out of 33 patents)

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