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For the Inventor, By the Inventor

Tsuchiura, Japan

Naohiro Nojiri

This inventor holds 11 USPTO granted patents. Top assignee: Mitsubishi Petrochemical Company Limited. Active years: 1976-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naohiro Nojiri. Retrieved from https://idiyas.com/inventor/naohiro-nojiri

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 6

Forward Citations = 101(Granted Patents)


Location History:

  • Ami, JA (1976 - 1977)
  • Amimachi, JA (1977)
  • Ibaraki, JP (1987)
  • Tsuchiura, JP (1987 - 1989)
  • Ami, JP (1983 - 1990)

Company Filing History:

goldMedal11 out of 546 
 
Mitsubishi Petrochemical Company Limited
 patents

Years Active: 1976-1990

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11 patents (USPTO):Explore Patents
1. 4939114 - Silver-deposited catalyst for production of ethylene oxide (1990-07-03),
2. 4812437 - Silver-deposited catalyst for production of ethylene oxide (1989-03-14),
3. 4786624 - Silver catalyst for production of ethylene oxide from ethylene (1988-11-22),
4. 4746749 - Process for producing silver oxalate (1988-05-24),
5. 4690913 - Silver catalyst for production of ethylene oxide from ethylene and (1987-09-01),
6. 4642360 - Method for producing ethylene oxide (1987-02-10),
7. 4415476 - Silver-based catalyst containing chlorine as an anionic component for (1983-11-15),
8. 4414135 - Silver-based catalyst containing bromine and/or fluorine as an anionic (1983-11-08),
9. 4014766 - Electrolytic treatment of waste water (1977-03-29),
10. 4008280 - Process for production of acrolein (1977-02-15),
11. 3965162 - Process for production of acrylic acid (1976-06-22),

Title: Naohiro Nojiri: Innovator in Catalytic Technology

Introduction

Naohiro Nojiri is a prominent inventor based in Tsuchiura, Japan. He has made significant contributions to the field of catalytic technology, holding a total of 11 patents. His work primarily focuses on the development of catalysts that enhance chemical processes, particularly in the production of ethylene oxide.

Latest Patents

One of Nojiri's latest patents is a silver-deposited catalyst for the production of ethylene oxide. This innovative catalyst is designed for the oxidation of ethylene, showcasing high selectivity and long life. The catalyst comprises a combination of silver and a cation component selected from sodium, potassium, rubidium, and cesium. Additionally, it features a carrier primarily made of alpha-alumina, which has specific properties such as a surface area of 0.6 to 2 m²/g, a water absorption of 20 to 50%, and a silica content of 0.5 to 12% by weight.

Career Highlights

Naohiro Nojiri is currently associated with Mitsubishi Petrochemical Company Limited, where he continues to innovate in the field of catalysis. His extensive research and development efforts have positioned him as a key figure in the industry.

Collaborations

Throughout his career, Nojiri has collaborated with notable colleagues, including Yukio Sakai and Tomoatsu Iwakura. These partnerships have further enriched his work and contributed to advancements in catalytic technologies.

Conclusion

Naohiro Nojiri's contributions to catalytic technology, particularly in the production of ethylene oxide, highlight his innovative spirit and dedication to advancing chemical processes. His work continues to influence the industry and pave the way for future developments.

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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