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Shigenobu Nakayama

This inventor holds 4 USPTO granted patents. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1985-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigenobu Nakayama. Retrieved from https://idiyas.com/inventor/shigenobu-nakayama

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 3

Forward Citations = 24(Granted Patents)

Location History:

Kamakura, JP (1985)
Mihara, JP (1991 - 1993)

Company Filing History:

Mitsui Toatsu Chemicals, Incorporated

Years Active: 1985-1993

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5214034 - Catechol derivatives, and preventive and remedial preparations for (1993-05-25),

2. 5102906 - Catechol derivatives, and preventive and remedial preparations for (1992-04-07),

3. 4985458 - Catechol diacetate derivatives for inducing the production of nerve (1991-01-15),

4. 4507500 - Process for producing 2-mercaptoethylamine hydrohalides (1985-03-26),

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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