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For the Inventor, By the Inventor

Tainai, Japan

Katsuji Ujita

This inventor holds 14 USPTO granted patents and 1 published patent application and 6 EPO patents. Top assignees: Kuraray Co., Ltd., Daiichi Pharmaceutical Co., Ltd., Other. Active years: 1997-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuji Ujita. Retrieved from https://idiyas.com/inventor/katsuji-ujita

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

USPTO Granted Patents = 14 

% Patents Active = 42.9

 

Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 7(Granted Patents)


Location History:

  • Nakajo-machi, JP (1997)
  • Kurashiki, JP (2004)
  • Okayama, JP (2004)
  • Kitakanbara-gun, JP (2008)
  • Niigata, JP (2007 - 2014)
  • Tainai, JP (2012 - 2020)
  • Chiyoda-ku, JP (2023)
  • Tokyo, JP (2023)

Company Filing History:

goldMedal11 out of 1,872 
 
Kuraray Co., Ltd.
 patents
silverMedal1 out of 200 
 
Daiichi Pharmaceutical Co., Ltd.
 patents
bronzeMedal3 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1997-2023

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14 patents (USPTO):Explore Patents
1. 11840669 - Method for hydrocarbon production, purification method, and purifier (2023-12-12),
2. 11760816 - Compound containing unsaturated double bond, oxygen absorber comprising same, and resin composition (2023-09-19),
3. 10618860 - Homoallyl halide composition and method for storing homoallyl halide (2020-04-14),
4. 9611344 - Vinyl alcohol polymer, method for producing same, and composition and coating agent containing vinyl alcohol polymer (2017-04-04),
5. 8816123 - Method for producing alkyl 5-methyl-5-hexenoate (2014-08-26),
6. 8742127 - Production method of 6-halogeno-3-arylpyridine derivative (2014-06-03),
7. 8173832 - Process for producing 2-isopropenyl-5-methyl-4-hexene-1-yl-3-methyl-2-butenoate (2012-05-08),
8. 8097746 - Method for producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate (2012-01-17),
9. 7358400 - Process for producing cyclopropane monoacetal derivative and intermediate therefor (2008-04-15),
10. 7164047 - Processes for preparation of cyclopropylethanol, cyclopropylacetonitorile and intermediates of both (2007-01-16),
11. 6797832 - Process for the production of 5-oxy-7-oxabicyclo [4.1.0] hept-3-ene-3-carboxylic acid esters (2004-09-28),
12. 6790964 - Process for the preparation of 7-azabicyclo[4.1.0]hept-3-ene-3-carboxylic acid esters (2004-09-14),
13. 6677464 - Process for preparation of 7-oxabicyclo[2.2.1]hept-5-ene-2-carboxylic acid derivatives (2004-01-13),
14. 5621146 - Process for producing 2,4-dihydroxyacetophenone (1997-04-15),

Title: Katsuji Ujita: Innovator in Hydrocarbon Production and Purification Methods

Introduction

Katsuji Ujita is a prominent inventor based in Tainai, Japan. He has made significant contributions to the field of hydrocarbon production and purification, holding a total of 14 patents. His innovative approaches have the potential to impact various industries, particularly in the realm of chemical engineering.

Latest Patents

Ujita's latest patents include a method for hydrocarbon production and a purification method. The first patent relates to a method for producing hydrocarbons, which involves converting a reaction product of sulfur compounds, such as hydrogen sulfide, into a water-soluble compound in the presence of water. This process also includes a step for separating oil and water. Another notable patent focuses on an unsaturated double bond-containing compound that enhances crosslinking and curing reactions in coating materials. This compound is also part of an oxygen absorbent and a resin composition, showcasing Ujita's versatility in chemical applications.

Career Highlights

Throughout his career, Katsuji Ujita has worked with notable companies, including Kuraray Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.

Collaborations

Ujita has collaborated with esteemed colleagues such as Shiro Terashima and Takashi Fukumoto. These partnerships have likely fostered a creative environment that encourages the development of new ideas and technologies.

Conclusion

Katsuji Ujita's work in hydrocarbon production and purification methods exemplifies the spirit of innovation. His patents reflect a commitment to advancing technology in the chemical industry. Ujita's contributions will undoubtedly continue to influence future developments in this vital field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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