Inventor

Keiji Ikemori

Inventor

Kanagawa, JP

Overview

63→

Patents

1976–2003

Patent span

Physics

Primary field (CPC G)

Patents· 63 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus76%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them11%

C03CChemical composition of glasses, glazes or vitreous enamels4%

C09DCoating compositions, e.g. paints, varnishes or lacquers3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

C08LCompositions of macromolecular compounds1%

C09KMaterials for miscellaneous applications, not provided for elsewhere1%

Y10TTechnical subjects covered by former us classification1%

PatentTitleYear

6,506,446'Anti-fog coating material and method of preparing an anti-fog article'2003 6,327,430'Camera having antifogging film'2001 6,306,932'Anti-fogging coating material, anti-fogging coating film and anti-fogging article'2001 6,055,376'Observation optical system and optical apparatus having the same'2000 5,976,680'Non-fogging antireflection film and optical member, and production process thereof'1999 5,576,779'Camera system'1996 5,392,082'Photographing apparatus having a trimming photographic mode'1995 5,319,405'Camera system'1994 5,305,148'Compact varifocal lens'1994 5,289,317'Compact zoom lens'1994 5,270,866'Compact zoom lens'1993 5,173,805'Focusing method for zoom lens'1992 5,078,481'Magnification changing lens'1992 4,865,434'Zoom lens capable of selecting a focal length beyond a standard focal length range'1989 4,836,661'Optical system of variable magnification power'1989 4,830,477'Zoom lens capable of obtaining focal lengths beyond a variable focal length range'1989 4,826,301'Photographic system having soft focus function'1989 4,804,986'Camera'1989 4,789,227'Zoom lens'1988 4,784,479'Varifocal optical system'1988 4,781,446'Zoom lens having a capability of introducing special features into image formats'1988 4,775,228'Zoom lens'1988 4,750,821'Zoom lens assembly'1988 4,730,199'Photographic apparatus'1988 4,711,534'Zoom lens able to obtain focal lengths beyond the zooming range'1987 4,707,103'Optical system of variable magnification'1987 4,705,363'Aberrational deterioration prevented zoom lens'1987 4,702,567'Zoom lens'1987 4,695,133'High range zoom lens'1987 4,687,302'Zoom lens'1987 4,684,223'Zoom lens of the rear focusing type'1987 4,666,257'Compact zoom lens'1987 4,647,160'Small-sized wide angle zoom objective'1987 4,639,096'High range zoom lens'1987 4,630,899'Zoom lens having movable diaphragm'1986 4,629,294'Zoom lens'1986 4,586,793'Zoom lens'1986 4,509,833'High variable magnification wide angle zoom lens'1985 4,477,153'Ultrawide angle zoom objective'1984 4,469,412'Wide angle zoom lens'1984 4,468,099'Telephoto objective'1984 4,466,707'Variable magnification lens system'1984 4,456,340'Optical system for focal length conversion'1984 4,437,746'Photo metering device for single lens reflex camera'1984 4,432,615'Zoom lens'1984 4,427,268'Variable magnification ratio lens'1984 4,422,734'Photographic lens system having an auxiliary lens'1983 4,400,064'Zoom lens'1983 4,390,248'Wide angle zoom lens'1983 4,376,571'Photographic small size objective'1983 4,370,031'Zoom objective of small size'1983 4,364,644'Gauss type large aperture photographic objective'1982 4,340,279'Rear attachment lens'1982 4,329,022'Two group type zoom lens with wide image angle'1982 4,310,222'Retro-focus type wide angle lens'1982 4,299,452'Zoom lens having two movable lens groups'1981 4,291,951'Compact type retrofocus lens'1981 4,232,942'Optically compensated zoom lens'1980 4,206,973'Retrofocus type wide-angle objective'1980 4,135,786'Zoom lens system'1979 4,111,558'Retrofocus type wide angle objective lens'1978 4,110,006'Telephoto type zoom lens'1978 3,947,094'Retro-telecentric lens'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2003Patents assigned to CANON KK (63)· patent assignee history

1976Based in Kawasaki, JP· patent location history

1978–2003Based in Yokohama, JP· patent location history

1983–1996Based in Kanagawa, JP· patent location history

1999–2003Patents assigned to NAKATO LAB INC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	63	1976–2003
NAKATO LAB INC	3	1999–2003

Locations

Location	Patents	Span
Kanagawa, JP	36	1983–1996
Yokohama, JP	26	1978–2003
Kawasaki, JP	1	1976