Company Filing History:

11 out of 1,165

Daicel Chemical Industries, Ltd.

Tokyo Ohka Kogyo Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1992-2023

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14 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 11643476 - Cellulose ester and molded article thereof (2023-05-09),

2. 10927190 - Cellulose ester and molded article thereof (2021-02-23),

3. 9862695 - Monomer having N-acyl carbamoyl group and lactone skeleton, and polymeric compound (2018-01-09),

4. 8637623 - Monomer having electron-withdrawing substituent and lactone skeleton, polymeric compound, and photoresist composition (2014-01-28),

5. 7407733 - [object Object] (2008-08-05),

6. 7033726 - Photoresist polymeric compound and photoresist resin composition (2006-04-25),

7. 6900360 - High-purity 1,3-butylen glycol, process for producing 1,3-butylene glycol, and process for producing by-product butanol and butyl acetate (2005-05-31),

8. 6610638 - High purity 1,3-propanediol derivative solvent, process for producing the same, and use thereof (2003-08-26),

9. 5886228 - Highly purified 1-aminopropanediol-2,3 (1999-03-23),

10. 5750792 - Highly purified 1-aminopropanediol-2,3 (1998-05-12),

11. 5556516 - Method for the purification of 1-aminopropanediol-2,3 (1996-09-17),

12. 5391821 - Process for producing carboxylic acids (1995-02-21),

13. 5214203 - Process for producing carboxylic acids (1993-05-25),

14. 5089650 - Process for producing carbonic acid ester (1992-02-18),

Title: Hiroshi Koyama - Innovative Inventor from Himeji, Japan

Introduction: Hiroshi Koyama is a renowned inventor hailing from Himeji, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Hiroshi Koyama holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his versatility and forward-thinking approach to innovation.

Career Highlights: With a career spanning over two decades, Koyama has worked with leading research institutions and universities to develop cutting-edge technologies that have revolutionized the industry.

Collaborations: Throughout his career, Hiroshi Koyama has collaborated with top companies in Japan and internationally, fostering a culture of innovation and excellence in all his projects.

Conclusion: Hiroshi Koyama's passion for innovation and his dedication to pushing the boundaries of technology make him a true pioneer in the world of inventions.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.