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Mahle Filter Systems Japan Corporation

USPTO Granted Patents = 85

EPO Patents = 55

Forward Citations = 393

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117 inventors (with patents filed for the assignee):

Masahiro Ariyama (11 out of 14 patents)

Atsushi Nonaka (10 out of 10 patents)

Junpei Omichi (9 out of 10 patents)

4. Koji Yamasaki (7 out of 33 patents)

5. Daizo Ito (6 out of 6 patents)

6. Takashi Hasumi (5 out of 6 patents)

7. Katsuhiro Isoda (5 out of 5 patents)

8. Masashi Shinada (5 out of 5 patents)

9. Masaru Nakano (5 out of 6 patents)

10. Hiroyuki Yoshida (5 out of 60 patents)

11. Kenji Yamashita (4 out of 11 patents)

12. Yuichi Kato (4 out of 25 patents)

13. Shozo Wakamatsu (4 out of 4 patents)

14. Katsuhisa Ohta (4 out of 4 patents)

15. Terumoto Mochizuki (4 out of 4 patents)

Core Competencies:

Heat Exchanger

Brazing Method

Honeycomb Adsorbent

Air Cleaner

Oil Cooler

Turbocharger

Fuel Adsorption Apparatus

Internal Combustion Engine

Variable Displacement Pump

Drain Plug Structure

Intake Manifold

Electric Pump

85 patents: Sort by Forward Citations

1. 12472573 - Screen to be used during brazing of heat exchanger and brazing method for heat exchanger (2025-11-18),

2. 12121998 - Brazing a stacked body with a screen (2024-10-22),

3. 11905875 - Vehicle heat exchange system (2024-02-20),

4. RE49587 - Honeycomb adsorbent, method of manufacturing the honeycomb adsorbent and canister (2023-07-24),

5. 11525425 - Air cleaner (2022-12-13),

6. 11454146 - Drain plug structure for oil pan (2022-09-27),

7. 11448106 - Sealing structure (2022-09-20),

8. 11326562 - Fuel adsorption apparatus and evaporated fuel processing apparatus using fuel adsorption apparatus (2022-05-10),

9. 11311822 - Bubble separator, and fluid circuit for automobile that includes bubble separator (2022-04-26),

10. 10920631 - Head cover for internal combustion engine cylinder head (2021-02-16),

11. 10900716 - Heat exchanger (2021-01-26),

12. 10787941 - Drain nut attachment structure for synthetic resin cover (2020-09-29),

13. 10731760 - Sealing structure (2020-08-04),

14. 10662833 - Oil cooler (2020-05-26),

15. 10641555 - Heat exchanger for vehicle (2020-05-05),

Mahle Filter Systems Japan Corporation specializes in the development and production of automotive filters. They offer a wide range of high-quality filters for various vehicles, including air filters, oil filters, and fuel filters. With a strong focus on innovation and engineering excellence, Mahle Filter Systems Japan Corporation is committed to delivering reliable and efficient filtration solutions to meet the evolving needs of the automotive industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

85 Patents

#530 in

#1,228 in

#8,720 in the World

Mahle Filter Systems Japan Corporation

Forward Citations = 393

117 inventors:

Masahiro Ariyama (11 out of 14 patents)

Atsushi Nonaka (10 out of 10 patents)

Junpei Omichi (9 out of 10 patents)

4. Koji Yamasaki (7 out of 33 patents)

5. Daizo Ito (6 out of 6 patents)

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