Urawa, Japan

Tadanao Kohara

This inventor holds 5 USPTO granted patents. Top assignees: Toa Nenryo Kogyo, K. K., Tonen Corporation. Active years: 1989-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadanao Kohara. Retrieved from https://idiyas.com/inventor/tadanao-kohara

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 3

Forward Citations = 45(Granted Patents)


Location History:

  • Kanagawa, JP (1989 - 1990)
  • Urawa, JP (1993 - 1994)

Company Filing History:


Years Active: 1989-1994

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5 patents (USPTO):Explore Patents

Title: **Tadanao Kohara: Innovator in Silane Compounds**

Introduction

Tadanao Kohara is an accomplished inventor based in Urawa, Japan, known for his contributions to the field of silane compounds. With a portfolio of five patents, his work is pivotal in developing novel compounds that have significant applications in polymerization processes.

Latest Patents

Kohara's latest innovations include two notable patents concerning silane compounds. The first patent describes a novel silane compound, alkoxy cyclopentyl diethoxysilane, which is synthesized by reacting cyclopentyl trihalosilane with ROH and subsequently with ethanol, or by reacting cyclopentyl triethoxysilane with ROH. In this context, the alkyl in the alkoxy or R in ROH refers to an organic group selected from isopropyl, sec-butyl, tert-butyl, and tert-amyl groups. This silane compound is particularly useful as a catalytic component for olefin polymerization and serves effectively as a silane coupling agent.

The second patent introduces another novel silane compound, alkoxy cyclopentyl dimethoxysilane. This compound is prepared by a similar method, reacting cyclopentyl trihalosilane with ROH and then with methanol, or by reacting cyclopentyl trimethoxysilane with ROH, where the alkyl group and R in ROH can include sec-butyl, tert-amyl, cyclopentyl, oxa-3-cyclopentyl, cyclohexyl, and 2-isopropyl-5-methyl cyclohexyl groups. These compounds provide versatile applications as catalytic components and coupling agents.

Career Highlights

Throughout his career, Tadanao Kohara has contributed his expertise to several prominent companies in the chemical industry. He has worked with Toa Nenryo Kogyo, K.K., and Tonen Corporation, further solidifying his reputation as a knowledgeable inventor in the field of silane compounds.

Collaborations

Kohara has collaborated with esteemed professionals such as Satoshi Ueki and Tomoko Aoki. These partnerships have fostered innovative ideas and significantly advanced the development of his inventions.

Conclusion

Tadanao Kohara’s innovations in silane compounds illustrate the importance of scientific research and development in modern applications. His patented inventions not only contribute to the chemical industry but also pave the way for future advancements in polymerization technologies.

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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