Patents/Inventors

Masamichi Yamada

KanagawaJP4 patents

5 Patents

US122652252025
Light Guide Member and Display Device
RICOH COMPANY, Ltd.
0 cites
US121816732024
Propagation Optical System and Virtual Image Display Device
RICOH COMPANY, Ltd.
0 cites
US118921182024
Display Stand and Display Stand System
RICOH COMPANY, Ltd.
0 cites
US117795932023
Agent for Improving Ocular Subjective Symptoms and Method Thereof
SEIKAGAKU CORPORATION
0 cites
US117469472023
Stand and Stand System
Ricoh Company, Ltd.
0 cites