P

Inventor

BABA TAKESHI

JP59 patents
⚠️ This page may combine multiple inventors who share the name “BABA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

26 patents
US4783155ANov 8, 1988

Optical device with variably shaped optical surface and a method for varying the focal length

CANON KK140 citations99
US4985186AJan 15, 1991

Process for producing optical element

CANON KK102 citations96
US4872743AOct 10, 1989

Varifocal optical element

CANON KK92 citations96
US4872058AOct 3, 1989

Automatic focusing device

CANON KK53 citations96
US4802746AFeb 7, 1989

Variable-focus optical element and focus detecting device utilizing the same

CANON KK87 citations96
US4729641AMar 8, 1988

Functional optical element having a non-flat planar interface with variable-index medium

CANON KK55 citations96
US4714326ADec 22, 1987

Method and element for optical modulation

CANON KK98 citations96
US6253248B1Jun 26, 2001

Information processing apparatus and method

CANON KK94 citations94
US5396336AMar 7, 1995

In-focus detecting device

CANON KK36 citations93
US4783153ANov 8, 1988

Variable-focus optical device

CANON KK39 citations93
US4848879AJul 18, 1989

Light modulating device

CANON KK39 citations92
US4783141ANov 8, 1988

Array lens

CANON KK42 citations92
US4781445ANov 1, 1988

Optical device having positionally changeable optical surfaces and a method of varying an image forming position

CANON KK39 citations92
US4712882ADec 15, 1987

Variable focal length lens

CANON KK36 citations92
US6466968B2Oct 15, 2002

Information processing system capable of file transmission and information processing apparatus in the system

CANON KK35 citations89
US4678899AJul 7, 1987

Afocal variable magnification optical system

CANON KK19 citations82
US4523801AJun 18, 1985

Scanning optical system subjected to a moisture proof treatment

CANON KK21 citations81
US4840473AJun 20, 1989

Optical device

CANON KK14 citations74
US4820028AApr 11, 1989

Zoom lens with a variable refractive index element

CANON KK14 citations74
US4770506ASep 13, 1988

Gradient index single lens

CANON KK12 citations74
US4706124ANov 10, 1987

Focus detecting device which varies between a varying state and a fixed state

CANON KK9 citations74
US4674843AJun 23, 1987

Gradient index lens

CANON KK10 citations74
US4647159AMar 3, 1987

Gradient index type single lens

CANON KK13 citations74
US4517589AMay 14, 1985

Colored image reading apparatus

CANON KK7 citations74
US4865426ASep 12, 1989

Variable aberration imaging optical system

CANON KK6 citations63
US4679931AJul 14, 1987

Electrophotographic apparatus

CANON KK2 citations63

MITSUBISHI CABLE IND LTD

5 patents

TOKYO OHKA KOGYO CO LTD

4 patents

CHUGAI PHARMACEUTICAL CO LTD

3 patents

CLARION CO LTD

2 patents

NAT STARCH CHEM INVEST

2 patents

TOKAI RIKA CO LTD

1 patent

FUJITSU OPTICAL COMPONENTS LTD

1 patent

OHASHI SHINGO

1 patent

CALSONIC KANSEI CORP

1 patent

TERUMO CORP

1 patent

SUMITOMO ELECTRIC INDUSTRIES

1 patent

FUJITSU LTD

1 patent

UNIV OSAKA

1 patent

Showing the top 50 of 59 patents by PatentIndex Score.