Optical element, optical disc and rotary encoder with the optical element
A Standard patent application filed on 25 May 1989 credited to Minemura, Hiroyuki ; Sato, Yoshio ; Ohyama, Shinji ; Koyanagi, Hiroaki ; Tsuboi, Nobuyoshi

Details

Application number :

35205  

Application type :

Standard  

Application status :

CEASED  

Under opposition :

No  

Proceeding type :

 

Invention title :

Optical element, optical disc and rotary encoder with the optical element  

Inventor :

Minemura, Hiroyuki ; Sato, Yoshio ; Ohyama, Shinji ; Koyanagi, Hiroaki ; Tsuboi, Nobuyoshi  

Agent name :

FB Rice  

Address for service :

Level 23 44 Market Street SYDNEY NSW 2000  

Filing date :

25 May 1989  

Associated companies :

 

Applicant name :

Hitachi Limited  

Applicant address :

6 Kanda Surugadai 4-chome Chiyoda-ku Tokyo Japan  

Old name :

 

Original Source :

Go