Osaka, Japan

Kiyotaka Onishi

This inventor holds 2 USPTO granted patents. Top assignees: Nippon Steel Chemical Co., Ltd., Iwatani Industrial Gases Corp.. Active years: 1987-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyotaka Onishi. Retrieved from https://idiyas.com/inventor/kiyotaka-onishi

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

Calculating rank

% Patents Active = 50.0

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1987-2009

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2 patents (USPTO):Explore Patents

Title: Kiyotaka Onishi: Innovator in Chemical Processes

Introduction

Kiyotaka Onishi is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of chemical processes, particularly in the production of specialized compounds. With a total of 2 patents, his work has implications in various industrial applications.

Latest Patents

One of his latest patents is a process for producing an alicyclic oxetane compound. This innovative production process allows for the easy acquisition of a novel alicyclic oxetane compound that features an oxetane ring. This compound exhibits excellent light transmission in the near ultraviolet region and serves as a useful cationically polymerizable monomer. The method involves subjecting an aromatic oxetane compound to nuclear hydrogenation in high-pressure hydrogen, utilizing a hydrogenation catalyst. For instance, when 4,4'-bis[(3-ethyloxetan-3-yl)methoxymethyl]biphenyl is used, the resulting alicyclic oxetane compound is 4,4'-bis[(3-ethyloxetan-3-yl)methoxymethyl]bicyclohexyl.

Another significant patent by Onishi is a process for the production of decahydroisoquinoline. This process entails hydrogenating isoquinoline or partially hydrogenated isoquinoline in the presence of a ruthenium catalyst. The reaction occurs at temperatures ranging from 110°C to 230°C under a hydrogen pressure of at least 10 kg/cm².

Career Highlights

Throughout his career, Kiyotaka Onishi has worked with prominent companies such as Nippon Steel Chemical Co., Ltd. and Iwatani Industrial Gases Corporation. His experience in these organizations has contributed to his expertise in chemical processes and innovation.

Collaborations

Onishi has collaborated with notable coworkers, including Hiroshi Okazaki and Mahito Soeda. Their joint efforts have further advanced the research and development of chemical processes.

Conclusion

Kiyotaka Onishi's contributions to the field of chemical processes through his innovative patents highlight his role as a significant inventor. His work continues to influence the industry and pave the way for future advancements.

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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