logo

For the Inventor, By the Inventor

Fujisawa, Japan

Takao Maki

This inventor holds 13 USPTO granted patents. Top assignees: Mitsubishi Chemical Industries Limited, Mitsubishi Kasei Corporation, Mitsubishi Chemical Corporation. Active years: 1977-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Maki. Retrieved from https://idiyas.com/inventor/takao-maki

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 6

Forward Citations = 253(Granted Patents)


Location History:

  • Fujisawa, JA (1977)
  • Kanagawa, JP (1986 - 1993)
  • Fujisawa, JP (1982 - 1996)

Company Filing History:

goldMedal9 out of 614 
 
Mitsubishi Chemical Industries Limited
 patents
silverMedal3 out of 499 
 
Mitsubishi Kasei Corporation
 patents
bronzeMedal1 out of 2,422 
 
Mitsubishi Chemical Corporation
 patents

Years Active: 1977-1996

Loading Chart...
13 patents (USPTO):Explore Patents
1. 5569803 - Method for producing a cycloolefin (1996-10-29),
2. 5306845 - Method for producing an aldehyde (1994-04-26),
3. 5239108 - Process for producing aliphatic or alicyclic aldehyde (1993-08-24),
4. 5157179 - Method for producing a cycloolefin (1992-10-20),
5. 4791235 - Process for separating 2,6-dimethylnaphthalene (1988-12-13),
6. 4649217 - Process for producing oxocarboxylic acids (1987-03-10),
7. 4613700 - Process for producing aromatic aldehydes (1986-09-23),
8. 4556751 - Catalytic isomerization process of dimethylnaphthalenes (1985-12-03),
9. 4478956 - Process for preparing bisphenols using pyridinealkanethiol derivatized (1984-10-23),
10. 4423252 - Process for preparing bisphenols (1983-12-27),
11. 4405823 - Process for the production of phenols (1983-09-20),
12. 4319054 - Process for producing pyrogallol (1982-03-09),
13. 4013691 - Process for the simultaneous manufacture of epsilon-caprolactones and (1977-03-22),

Title: The Innovations of Takao Maki

Introduction

Takao Maki is a prominent inventor based in Fujisawa, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of various organic compounds. With a total of 13 patents to his name, Maki's work has had a substantial impact on industrial processes.

Latest Patents

Among his latest patents, Maki has developed a method for producing a cycloolefin. This method involves partially hydrogenating a monocyclic aromatic hydrocarbon in the presence of water and a ruthenium catalyst supported on silica modified by zirconium oxide. Additionally, he has patented a method for producing an aldehyde, which includes hydrogenating a carboxylic acid or its alkyl ester with molecular hydrogen in the presence of a high-purity chromium oxide catalyst. This innovative approach ensures that the hydrogenation reaction is conducted while maintaining the carboxylic acid or its alkyl ester at a concentration of not more than 10 vol %.

Career Highlights

Throughout his career, Takao Maki has worked with notable companies such as Mitsubishi Chemical Industries Limited and Mitsubishi Kasei Corporation. His experience in these organizations has allowed him to refine his expertise and contribute to various innovative projects.

Collaborations

Maki has collaborated with esteemed colleagues, including Toshiharu Yokoyama and Tetsuo Masuyama. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Takao Maki's contributions to the field of chemical engineering are noteworthy. His innovative methods and collaborations have significantly advanced the production of essential organic compounds. Maki's work continues to influence the industry and inspire future innovations.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…