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Forward Citations = 184

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6 inventors (with patents filed for the assignee):

Motoo Shigeyasu (9 out of 9 patents)

Takehiko Kitamura (4 out of 4 patents)

Michio Kuki (3 out of 3 patents)

4. Hatsutaro Yamazaki (2 out of 7 patents)

5. Nobuo Kusano (2 out of 2 patents)

6. Takeo Ozaki (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 4370496 - Process for continuous production of high purity terephthalic acid (1983-01-25),

2. 4327226 - Process and apparatus for producing aromatic dicarboxylic acids (1982-04-27),

3. 4189603 - Process for producing high-quality terephthalic acid suitable for use in (1980-02-19),

4. 4160108 - Process for producing terephthalic acid (1979-07-03),

5. 4159307 - Apparatus for producing aromatic dicarboxylic acids (1979-06-26),

6. 4062654 - Apparatus for continuous liquid-phase oxidation reaction (1977-12-13),

7. 3970696 - Process for producing aromatic carboxylic acid (1976-07-20),

8. 3959449 - Method of recovering heavy metal [-bromine] bromides and hydrobromic (1976-05-25),

9. 3956175 - Method for recovering a liquid-phase oxidation catalyst for preparation (1976-05-11),

Matsuyama Petrochemicals Inc. is a leading manufacturer of petrochemical products. With a strong focus on innovation and quality, we strive to meet the diverse needs of our customers in various industries. Our advanced facilities and expert team ensure top-notch products and services, making us a trusted partner in the petrochemical sector.

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USPTO Data Jan 1 1976 - Dec 30 2025

9 Patents

#430 in Osaka

#4,576 in Japan

Osaka, Japan

Matsuyama Petrochemicals Inc.