CT

Chiaki Tanaka

Ricoh Company: 5 patents #23 of 695Top 4%
📍 Shizuoka, WA: #1 of 2 inventorsTop 50%
Overall (1997): #4,790 of 185,788Top 3%
5
Patents 1997

Issued Patents 1997

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5672728 Method for preparing the pyrenylamine derivatives Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi 1997-09-30
5663407 Electrophotographic photoconductor, carbonate compound for use in the same, and intermediate compound for producing the carbonate compound Tomoyuki Shimada, Masaomi Sasaki 1997-09-02
5641598 Stilbene compound, process for producing same and electrophotographic photoconductor containing same Masaomi Sasaki, Tomoyuki Shimada 1997-06-24
5616805 Methods for preparing pyrenylamine derivatives and intermediates Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi 1997-04-01
5599995 Electrophotographic photoconductor comprising pyrenylamine derivative, the pyrenylamine derivative, intermediate for preparation thereof, and method for preparing the pyrenylamine derivative and the intermediate Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi 1997-02-04