P

Inventor

OTSUKA EIJI

JP11 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKA EIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON OXYGEN CO LTD

4 patents
US5573140ANov 12, 1996

Metallic vacuum double-walled container

NIPPON OXYGEN CO LTD71 citations94
US6427880B1Aug 6, 2002

Plug structure for drinking container

NIPPON OXYGEN CO LTD34 citations92
US6648168B2Nov 18, 2003

Insulated container

NIPPON OXYGEN CO LTD17 citations83
US5588197ADec 31, 1996

Method of manufacturing metallic vacuum double-walled container

NIPPON OXYGEN CO LTD18 citations71

OLYMPUS OPTICAL CO

3 patents
US5758205AMay 26, 1998

Lens barrel

OLYMPUS OPTICAL CO25 citations92
US5583595ADec 10, 1996

Lens barrel

OLYMPUS OPTICAL CO11 citations73
US5345283ASep 6, 1994

Lens barrel

OLYMPUS OPTICAL CO2 citations62

MITSUI TOATSU CHEMICALS

2 patents
US4173615ANov 6, 1979

Chemical apparatus for corrosive materials

MITSUI TOATSU CHEMICALS22 citations77
US4154760AMay 15, 1979

Process for controlling the temperature during urea synthesis

MITSUI TOATSU CHEMICALS0 citations33

TOSHIBA KK

2 patents
US5058142AOct 15, 1991

Clock extracting circuit in digital-line signal receiver

TOSHIBA KK10 citations72
US6668057B1Dec 23, 2003

Apparatus for receiving tone signal, apparatus for transmitting tone signal, and apparatus for transmitting or receiving tone signal

TOSHIBA KK4 citations60