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Inventor

Kayo Iwamoto

Inventor
Shinnanyo, JP

Overview

1→
Patents
1993
Patent span
Chemistry
Primary field (CPC C)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary
C07DHeterocyclic compounds50%
G03CPhotosensitive materials for photographic purposes50%
PatentTitleYear
5,246,989'Photochromic compound, composition and use thereof'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to TOKUYAMA SODA KABISHIKI KAISHA (1)· patent assignee history
1993Based in Shinnanyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKUYAMA SODA KABISHIKI KAISHA11993
Locations
LocationPatentsSpan
Shinnanyo, JP11993