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For the Inventor, By the Inventor

Kyoto, Japan

Zenichi Yoshida

This inventor holds 4 USPTO granted patents. Top assignees: Asahi Chemical Company, Limited, Sumitomo Chemical Company, Limited, Other. Active years: 1983-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Zenichi Yoshida. Retrieved from https://idiyas.com/inventor/zenichi-yoshida-t6dtxpd8

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 3

Forward Citations = 45(Granted Patents)


Location History:

  • Kyoto, JP (1983 - 1986)
  • Fushimi-ku, Kyoto-shi, Kyoto-fu, JP (1986)
  • Fushimi-ku, Koyto-shi, Kyoto-fu, JP (1989)

Company Filing History:

goldMedal2 out of 8 
 
Asahi Chemical Company, Limited
 patents
silverMedal1 out of 6,964 
 
Sumitomo Chemical Company, Limited
 patents
bronzeMedal2 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1983-1989

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4 patents (USPTO):Explore Patents
1. 4814532 - Process for producing alkylcyclopentadiene derivatives (1989-03-21),
2. 4608358 - Catalyst for the isomerization reaction of quadricyclanes to (1986-08-26),
3. 4567308 - Process for preparing alkylcyclopentadiene derivatives (1986-01-28),
4. 4399075 - Process for producing chlorinated phenoxytoluene derivatives (1983-08-16),

Title: Zenichi Yoshida: Innovator in Chemical Processes

Introduction

Zenichi Yoshida is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of chemical processes, holding a total of 4 patents. His work primarily focuses on the production of specialized chemical compounds and catalysts.

Latest Patents

Yoshida's latest patents include a process for producing alkylcyclopentadiene derivatives. This innovative process involves the vapor-phase reaction of a cyclopentadiene derivative and an aliphatic lower alcohol, utilizing a basic crystalline aluminosilicate catalyst containing an alkali metal. Another significant patent is related to a catalyst for the isomerization reaction of quadricyclanes to norbornadienes. This invention comprises a cyclopropenylidene palladium complex and a fixed catalyst obtained by adsorption-fixing a porphyrin Co(II) complex to a modified inorganic carrier.

Career Highlights

Throughout his career, Zenichi Yoshida has worked with various companies, including Asahi Chemical Company, Limited. His expertise in chemical processes has led to advancements in the production and application of chemical catalysts.

Collaborations

Yoshida has collaborated with notable individuals in his field, including Susumu Kato and Yasuhiro Amemiya. These collaborations have contributed to the development of innovative chemical solutions.

Conclusion

Zenichi Yoshida's contributions to chemical processes and his innovative patents highlight his role as a significant inventor in the industry. His work continues to influence advancements in chemical production and catalysis.

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]
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