Kazuhiro Yoshizawa

USPTO Granted Patents = 9 (Patent Applications = 1)

CIPO Patents = 2 (Patent Applications = 3)

EPO Patents = 6 (Patent Applications = 1)

Average Co-Inventor Count = 4.0

ph-index = 4

Forward Citations = 62(Granted Patents)

Location History:

Kashima-gun, JP (2008 - 2009)
Yamato, JP (2012)
Ibaraki, JP (2013)
Kamisu, JP (2009 - 2016)

Company Filing History:

7 out of 530

Eisai R&d Management Co., Ltd.

patents

1 out of 677

Eisai Company, Limited

Central Japan Railway Company

patents

where one patent can have more than one assignee

Years Active: 2008-2025

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12479819 - Method and compound useful in preparation of orexin-2 receptor antagonist, and lemborexant having few impurities (2025-11-25),

2. 9227942 - Method for producing 5-(difluoromethyl)pyrazine-2-carboxylic acid and production intermediate thereof (2016-01-05),

3. 8426584 - Methods and compounds useful in the synthesis of fused aminodihydrothiazine derivatives (2013-04-23),

4. 8410277 - Method for manufacturing heterocycle substituted pyridine derivatives (2013-04-02),

5. 8267016 - Open/close control system for inspection lid (2012-09-18),

6. 7683172 - Urea derivative and process for preparing the same (2010-03-23),

7. 7612208 - Crystalline form of the salt of 4-(3-chloro-4-(cyclopropylaminocarbonyl)aminophenoxy)-7-methoxy-6-quinolinecarboxamide or the solvate of the salt and a process for preparing the same (2009-11-03),

8. 7585982 - Methods for producing isoindole derivatives (2009-09-08),

9. 7375236 - Methods for producing cyclic benzamidine derivatives (2008-05-20),

Title: Kazuhiro Yoshizawa: Innovator in Pyrazine Chemistry

Introduction

Kazuhiro Yoshizawa is a distinguished inventor hailing from Kamisu, Japan, with an impressive portfolio of 8 patents to his name. His work primarily focuses on advancements in the fields of organic chemistry and pharmaceuticals, particularly in the synthesis of compounds that play vital roles in treating various neurological conditions.

Latest Patents

Among his latest innovations is a patent for a "Method for producing 5-(difluoromethyl)pyrazine-2-carboxylic acid and production intermediate thereof". This compound serves as a crucial raw material for constructing 5-(difluoromethyl)pyrazine-2-carboxamide, which is noted for its potential inhibitory action on the Aβ production and BACE1 enzyme. The method allows for an industrially advantageous production pathway through the decarboxylation of 5-[carboxy(difluoro)methyl]pyrazine-2-carboxylic acid, obtained from 5-chloropyrazine-2-carboxylate. Additionally, Kazuhiro has developed methods and compounds useful in the synthesis of fused aminodihydrothiazine derivatives, which are recognized for their potential as inhibitors of the beta-site amyloid precursor protein (APP)-cleaving enzyme.

Career Highlights

Kazuhiro Yoshizawa has garnered significant experience in the pharmaceutical industry, notably working at Eisai R&D Management Co., Ltd. and Eisai Company, Limited. His contributions to these organizations underscore his commitment to advancing drug development and providing innovative solutions to complex health problems.

Collaborations

Throughout his career, Kazuhiro has collaborated with talented colleagues, including Taiju Nakamura and Tomohiro Matsushima. These partnerships have helped enhance the scope and impact of his research, leading to significant advancements in their field.

Conclusion

Kazuhiro Yoshizawa's contributions to the field of chemistry and drug development exemplify the spirit of innovation. With multiple patents illustrating his commitment to creating effective solutions for neurological conditions, his ongoing work continues to inspire and pave the way for future scientific discoveries. His career serves as a testament to the powerful role of inventors in shaping the future of health and medicine.

This text is generated by artificial intelligence and may not be accurate.