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Kanagawa, Japan

Oppama Kogyo Kabushiki Kaisha

USPTO Granted Patents = 12

Forward Citations = 79

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12 inventors (with patents filed for the assignee):

Masao Iwata (4 out of 19 patents)

Hiromi Watanabe (3 out of 8 patents)

Shigeo Take (3 out of 13 patents)

4. Hiroshi Nakata (3 out of 3 patents)

5. Ryuzo Harada (2 out of 2 patents)

6. Hiromi Watanabe (1 out of 4 patents)

7. Kiyoshige Enomoto (1 out of 10 patents)

8. Yoshiki Kitamura (1 out of 7 patents)

9. Norio Kawai (1 out of 5 patents)

10. Yoshinori Ishikawa (1 out of 1 patent)

11. Houkichi Souma (1 out of 1 patent)

12. Masato Nogawa (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5287582 - Adhering substance peeling apparatus (1994-02-22),

2. 5240428 - Working machine safety device (1993-08-31),

3. 5181232 - Diesel engine revolution counter (1993-01-19),

4. 4829579 - Apparatus for confirming and reporting the operating conditions of a (1989-05-09),

5. 4633658 - Lawn mower (1987-01-06),

6. 4610231 - Start safety apparatus for internal combustion engine (1986-09-09),

7. 4565180 - Contactless ignition device for internal combustion engines (1986-01-21),

8. 4515140 - Contactless ignition device for internal combustion engines (1985-05-07),

9. 4512303 - Ignition time controlling device in contactless ignition devices for (1985-04-23),

10. 4385617 - Over-rotation preventing device for internal combustion engines (1983-05-31),

11. 4342304 - Contactless igniton circuit for internal combustion engines (1982-08-03),

12. 4305371 - Contactless ignition circuit for internal combustion engines (1981-12-15),

Oppama Kogyo Kabushiki Kaisha is a leading manufacturer of industrial machinery and equipment based in Japan. With a wide range of products including conveyors, sorting systems, and automation solutions, Oppama Kogyo Kabushiki Kaisha is known for its high-quality and innovative solutions for various industries.

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

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USPTO Data Jan 1 1976 - Dec 30 2025

12 Patents

#124 in Kanagawa

#3,838 in Japan

#46,724 in the World

Kanagawa, Japan

Oppama Kogyo Kabushiki Kaisha

Forward Citations = 79

12 inventors:

Masao Iwata (4 out of 19 patents)

Hiromi Watanabe (3 out of 8 patents)

Shigeo Take (3 out of 13 patents)

4. Hiroshi Nakata (3 out of 3 patents)

5. Ryuzo Harada (2 out of 2 patents)

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