P

Inventor

SHINDO OSAMU

JP66 patents
⚠️ This page may combine multiple inventors who share the name “SHINDO OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ASAHI OPTICAL CO LTD

21 patents
US5291234AMar 1, 1994

Auto optical focus detecting device and eye direction detecting optical system

ASAHI OPTICAL CO LTD219 citations99
US5327191AJul 5, 1994

Eye direction detecting apparatus

ASAHI OPTICAL CO LTD25 citations93
US5262807ANov 16, 1993

Eye direction detecting apparatus

ASAHI OPTICAL CO LTD23 citations93
US5260734ANov 9, 1993

Determining a direction in which an eye gazes

ASAHI OPTICAL CO LTD33 citations93
US5155516AOct 13, 1992

View finder optical system with eye direction detection device

ASAHI OPTICAL CO LTD24 citations93
US5017005AMay 21, 1991

Focal point detecting optical apparatus

ASAHI OPTICAL CO LTD24 citations93
US4908644AMar 13, 1990

Optical filtering device and method for using the same

ASAHI OPTICAL CO LTD28 citations93
US4828381AMay 9, 1989

Automatic visibility correction viewfinder system for optical devices

ASAHI OPTICAL CO LTD31 citations93
US4173398ANov 6, 1979

Optical system for objective eye-examination

ASAHI OPTICAL CO LTD34 citations91
US5870635AFeb 9, 1999

Focus detecting apparatus of camera

ASAHI OPTICAL CO LTD14 citations74
US5583606ADec 10, 1996

Eye direction detecting apparatus

ASAHI OPTICAL CO LTD11 citations74
US5557364ASep 17, 1996

Eye direction detecting apparatus

ASAHI OPTICAL CO LTD14 citations74
US5485404AJan 16, 1996

Eye direction detecting method and apparatus including method and apparatus for detecting boundary of the iris

ASAHI OPTICAL CO LTD13 citations74
US5128706AJul 7, 1992

Optical filtering device and method for using the same

ASAHI OPTICAL CO LTD9 citations74
US4716431ADec 29, 1987

Optical system for use in focus detecting apparatus

ASAHI OPTICAL CO LTD14 citations74
US4600830AJul 15, 1986

Focus detecting device

ASAHI OPTICAL CO LTD6 citations73
US4580042AApr 1, 1986

Focusing position detecting device using a sector shaped mirror

ASAHI OPTICAL CO LTD7 citations73
USRE36237EJun 29, 1999

View finder optical system with eye direction detection device

ASAHI OPTICAL CO LTD3 citations63
US4963913AOct 16, 1990

Automatic focusing camera

ASAHI OPTICAL CO LTD5 citations63
US4939357AJul 3, 1990

Optical system for a focal point detecting device

ASAHI OPTICAL CO LTD4 citations63
US4808806AFeb 28, 1989

Optical system for use in focus detecting apparatus

ASAHI OPTICAL CO LTD3 citations63

TDK CORP

8 patents

TOSHIBA KK

8 patents

SHIMAZAWA KOJI

7 patents

ASAHI KOGAKU KK

2 patents

MITSUBISHI ELECTRIC CORP

1 patent

SHINDO OSAMU

1 patent

MIZUNO TORU

1 patent

TAKEMARU RYUHEI

1 patent

Showing the top 50 of 66 patents by PatentIndex Score.