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For the Inventor, By the Inventor

Omuta, Japan

Mitsumasa Umemoto

USPTO Granted Patents = 12

Average Co-Inventor Count = 5.5

ph-index = 3

Forward Citations = 23(Granted Patents)


Location History:

  • Fukuoka, JP (1985 - 1989)
  • Ohmuta, JP (1985 - 1993)
  • Omuta, JP (1992 - 1993)

Company Filing History:

goldMedal12 out of 1,379 
 
Mitsui Toatsu Chemicals, Incorporated
 patents

Years Active: 1985-1993

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12 patents (USPTO):Explore Patents
1. 5221769 - Production of p-acetylaminophenol from p-aminophenyl acetate (1993-06-22),
2. 5208400 - Process for producing allyl bromides (1993-05-04),
3. 5144083 - Process for producing p-hydroxyneophyl m-phenoxybenzyl ether (1992-09-01),
4. 5105021 - Preparation of a difluorohalomethoxybenzene (1992-04-14),
5. 5104491 - Method for purifying pentachloronitrobenzene by solid base treatment (1992-04-14),
6. 4918106 - N-(2-chloro-4-nitrophenyl)-3-trifluoromethyl-benzenesulfonamide (1990-04-17),
7. 4873373 - Process for preparation of 3-phenoxybenzyl (1989-10-10),
8. 4870107 - N-(2-chloro-4-nitrophenyl)-(benzenesulfonamide derivative and (1989-09-26),
9. 4851445 - N-(2-Chloro-4-nitrophenyl)-benezene-sulfonamide derivative and (1989-07-25),
10. 4692466 - N-(2-chloro-4-trifluoromethylphenyl)-3-trifluoromethylbenzenesulfonamide (1987-09-08),
11. 4551478 - 3-Nitrobenzene sulfonanilide derivatives and fungicidal compositions for (1985-11-05),
12. 4542243 - Process for producing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl (1985-09-17),

Title: Mitsumasa Umemoto: A Pioneer in Chemical Innovations

Introduction

Mitsumasa Umemoto is an esteemed inventor hailing from Omuta, Japan. With a remarkable portfolio of 12 patents, he has made significant contributions to the field of chemistry, focusing on innovative processes that advance chemical production. His work has paved the way for new applications in various industries, demonstrating his importance as a leading inventor.

Latest Patents

Among Mitsumasa Umemoto's latest patents are noteworthy innovations that reflect his expertise. One of his recent patents involves the "Production of p-acetylaminophenol from p-aminophenyl acetate." In this process, p-aminophenyl acetate is isomerized to p-acetylaminophenol using an acid catalyst, such as acetic acid or phosphoric acid, highlighting an efficient method for producing a key pharmaceutical ingredient. Another groundbreaking invention is the "Process for producing allyl bromides." This improved method utilizes halogen exchange via the reaction of allyl chloride with a metal bromide, conducted in an aprotic polar solvent. The resultant allyl bromides serve as crucial intermediates in the synthesis of medicines, agricultural chemicals, and dyes, underscoring the industrial significance of his work.

Career Highlights

Mitsumasa Umemoto is a prominent member of Mitsui Toatsu Chemicals, Incorporated, where he contributes his innovative ideas to enhance chemical processes. His inventive spirit and technical acumen have been instrumental in the advancement of the company's research and development efforts. His 12 patents indicate a consistent and successful track record in devising solutions that drive progress in the chemical sector.

Collaborations

Throughout his career, Umemoto has collaborated with esteemed colleagues such as Keiichi Igarashi and Hideo Yamazaki. Working alongside these talented individuals has allowed for a dynamic exchange of ideas and innovation that has enriched their collective research initiatives. Together, they have driven significant advancements in the field, furthering the impact of their contributions on industrial applications.

Conclusion

Mitsumasa Umemoto stands out as a distinguished inventor in the realm of chemical innovation. With a total of 12 patents to his name, his recent developments in the production of essential chemical compounds illustrate his dedication to enhancing industrial practices. Through his work at Mitsui Toatsu Chemicals, Incorporated, and his collaborations with fellow innovators, Umemoto continues to leave an indelible mark on the landscape of chemical engineering and beyond.

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