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For the Inventor, By the Inventor

Sagamihara, Japan

Tamejiro Hiyama

USPTO Granted Patents = 13

Average Co-Inventor Count = 4.0

ph-index = 4

Forward Citations = 41(Granted Patents)


Location History:

  • Kanagawa, JP (1991)
  • Sagamihara, JP (1984 - 2000)

Company Filing History:

goldMedal10 out of 191 
 
Sagami Chemical Research Center
 patents
silverMedal3 out of 285 
 
Toyo Soda Manufacturing Co., Ltd.
 patents
bronzeMedal2 out of 174 
 
Sumitomo Pharmaceuticals Company Limited
 patents
4. 2 out of 630 
 
Dainippon Ink and Chemicals, Incorporated
 patents
5. 1 out of 42 
 
Kawamura Institute of Chemical Research
 patents
6. 1 out of 173 
 
Nippon Steel Chemical Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1984-2000

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13 patents (USPTO):Explore Patents
1. 6057479 - Process for preparing indan derivatives (2000-05-02),
2. 5369109 - Optically active esters of 7-substituted 3,5-difunctionalized (1994-11-29),
3. 5276154 - Optically active esters of 7-substituted 3,5-difunctionalized (1994-01-04),
4. 5231179 - Heterocyclic compounds and their production (1993-07-27),
5. 5064564 - Optically active compound, intermediate therefor, process for producing (1991-11-12),
6. 5061398 - Optically active lactone derivative, intermediate therefor, process for (1991-10-29),
7. 4892961 - Amino acid derivatives, and their production (1990-01-09),
8. 4864052 - 2,2-Dimethylcyclopropane-carboxylic acid derivatives (1989-09-05),
9. 4661231 - Fluorocarbon polymers and processes for their preparation (1987-04-28),
10. 4659744 - Fluorocarbon anion exchangers and processes for their preparation (1987-04-21),
11. 4567206 - Fluorocarbon polymers and processes for their preparation (1986-01-28),
12. 4501909 - Aminopolyol derivatives (1985-02-26),
13. 4481366 - Process for the preparation of a trifluorovinylsilane, and (1984-11-06),

Title: Tamejiro Hiyama: A Pioneer in Chemical Innovations

Introduction

Tamejiro Hiyama is a notable inventor based in Sagamihara, Japan. He has made significant contributions to the field of chemistry, particularly in the development of various chemical processes and compounds. With a total of 13 patents to his name, Hiyama's work has had a lasting impact on the industry.

Latest Patents

Among his latest patents is a process for preparing indan derivatives. This invention focuses on optically active esters of 7-substituted 3,5-difunctionalized 6-heptenoic acids. The formula for these compounds includes a substituted or unsubstituted aromatic group, a substituted or unsubstituted heteroaromatic group, or a substituted vinyl group.

Career Highlights

Hiyama has worked with prominent companies such as Sagami Chemical Research Center and Toyo Soda Manufacturing Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Throughout his career, Hiyama has collaborated with esteemed colleagues, including Kiyohide Matsui and Yoshiyuki Kikuchi. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Tamejiro Hiyama's contributions to chemical innovations and his extensive patent portfolio highlight his importance as an inventor. His work continues to influence the industry and inspire future generations of researchers and inventors.

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