Hisao Takayanagi

This inventor holds 18 USPTO granted patents, plus 1 CIPO patent and 3 EPO patents, primarily in Organic Chemistry. Top assignees: Mitsubishi Kasei Corporation, Mitsubishi Chemical Corporation, Mitsubishi Chemical Industries Limited. Active years: 1988-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Takayanagi. Retrieved from https://idiyas.com/inventor/hisao-takayanagi

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

Calculating rank

USPTO Granted Patents = 18

% Patents Active = 94.4

CIPO Patents = 1

EPO Patents = 3 (Patent Applications = 1)

Average Co-Inventor Count = 3.3

ph-index = 4

Forward Citations = 91(Granted Patents)

Location History:

Yamato, JP (1996)
Machida, JP (1997)
Kanagawa, JP (1998 - 1999)
Osaka, JP (2012)
Yokohama, JP (1988 - 2020)

Company Filing History:

9 out of 499

Mitsubishi Kasei Corporation

patents

4 out of 2,427

Mitsubishi Chemical Corporation

patents

3 out of 614

Mitsubishi Chemical Industries Limited

patents

4. 2 out of 263

Mitsubishi Tanabe Pharma Corporation

patents

Years Active: 1988-2020

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Areas of Expertise:

Acyclic Terpenes

Tyrosine Kinase Inhibitors

Benzoyl Derivatives

Isoquinoline Compounds

Monocyclic Terpenes

Conjugated Diene Compounds

Benzylamine Derivatives

Styrene Derivatives

Substituted Acyclic Terpenes

Anisole Derivatives

Crystal Compounds

Benzoylethylene Derivatives

18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10752575 - 4-alkoxy-3-(trifluoromethyl)benzyl alcohol production method (2020-08-25),

2. 8309573 - Salt of isoquinoline compound and crystal thereof (2012-11-13),

3. 5945564 - 2,2-dideutero-5-aminolevulinic acid (1999-08-31),

4. 5789448 - Benzoylethylene derivative (1998-08-04),

5. 5618829 - Tyrosine kinase inhibitors and benzoylacrylamide derivatives (1997-04-08),

6. 5514711 - Styrene derivatives (1996-05-07),

7. 5399724 - Acyclic terpene compound (1995-03-21),

8. 5354874 - Substituted-acyclic terpene compound (1994-10-11),

9. 5324869 - Substituted-acyclic terpene compound (1994-06-28),

10. 5304661 - Substituted-acyclic terpene compound (1994-04-19),

11. 5292911 - Monocyclic terpene derivatives (1994-03-08),

12. 5245085 - Substituted-acyclic terpene compound (1993-09-14),

13. 5166373 - Acyclic terpenes (1992-11-24),

14. 5149843 - Conjugated diene compounds (1992-09-22),

15. 5118827 - Monocyclic terpene derivatives (1992-06-02),

Title: Hisao Takayanagi: Innovator in Chemical Production

Introduction

Hisao Takayanagi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of chemical production, holding a total of 18 patents. His work focuses on innovative methods that enhance the efficiency and effectiveness of chemical processes.

Latest Patents

Among his latest patents is a method for producing 4-alkoxy-3-(trifluoromethyl)benzyl alcohol. This invention relates to a production method that achieves a high conversion ratio while strictly suppressing the production of byproducts by utilizing DIBAL as a reducing agent. Another notable patent involves a salt of an isoquinoline compound and its crystal form. This invention provides a stable compound, (R)-3-[2-(2-hydroxymethylpyrrolidin-1-yl)ethyl]-5-methyl-2H-isoquinolin-1-one monophosphate, which exhibits high solubility and minimal weight change due to humidity, making it superior for pharmaceutical applications.

Career Highlights

Hisao Takayanagi has worked with notable companies such as Mitsubishi Kasei Corporation and Mitsubishi Chemical Corporation. His experience in these organizations has allowed him to develop and refine his innovative approaches to chemical production.

Collaborations

Throughout his career, Takayanagi has collaborated with esteemed colleagues, including Yasunori Kitano and Yasuhiro Morinaka. These partnerships have contributed to the advancement of his research and the successful development of his inventions.

Conclusion

Hisao Takayanagi's contributions to chemical production through his innovative patents and collaborations highlight his importance in the field. His work continues to influence advancements in pharmaceutical and chemical industries.

Profile summary based on public USPTO records.