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Masayuki Nishikawa

Masayuki Nishikawa, Higashiosaka-Shi JP

Patent application number	Description	Published
20100001175	IMAGING DEVICE - A shutter (	01-07-2010
20110043684	Imaging device and method of producing the same - An imaging device comprises: a lens housing on which lens groups are mounted and which has a first opening opened along an optical axis direction of the lens groups; and a drive housing on which a drive source for moving the lens groups in the optical axis direction is mounted and which has a drive-use opening to be communicated with the first opening of the lens housing. The lens housing and the drive housing are combined together so as to be separable from each other in a state that the first opening and the drive-use opening are communicated with each other.	02-24-2011
20110050987	LENS UNIT AND IMAGING DEVICE - A lens unit having a first lens (	03-03-2011

Masayuki Nishikawa, Osaka JP

Patent application number	Description	Published
20100067124	LENS UNIT - One end of an FPC (	03-18-2010
20100246034	Lens Unit and Lens Driving Apparatus - First to third guide members have first to third axis lines, and the first to third axis lines are arranged in parallel with each other. A first lens holder has a first lens held by a first lens holding portion with a first main sliding portion guided by sliding on the first guide member, and a first sub sliding portion guided by sliding on the third guide member. A second lens holder has a second lens held coaxially with the first lens by a second lens holding portion with a second main sliding portion guided by sliding on the second guide member, and a second sub sliding portion guided by the third guide member.	09-30-2010

Masayuki Nishikawa, Kanagawa JP

Patent application number	Description	Published
20080273897	Electrophotographic photoreceptor, process cartridge and image forming apparatus - An electrophotographic photoreceptor includes a conductive support; a photosensitive layer; and a surface protective layer as an outermost layer of the electrophotographic photoreceptor, wherein the electrophotographic photoreceptor satisfies following formulas (a) and (b):	11-06-2008
20090214967	ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE SAME - The present invention provides an electrophotographic photoreceptor having at least a photosensitive layer and a surface layer provided at a surface of the photosensitive layer The surface layer contains a first layer which is provided at the photosensitive layer side and has a refractive index of n	08-27-2009
20090253061	ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE SAME - An electrophotographic photoreceptor includes a conductive substrate, and a photosensitive layer, an intermediate layer having a thickness of 2 nm to 70 nm, and a surface layer, which are disposed in this order on the conductive substrate. The refractive index n	10-08-2009
20090297217	ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE SAME - The present invention provides an electrophotographic photoreceptor having at least a photosensitive layer and a surface layer provided at a surface of the photosensitive layer. The surface layer contains a first layer which is provided at the photosensitive layer side and has a refractive index of n1 and a second layer which is provided at the opposite side of the first layer to the photosensitive layer and has a refractive index of n2. The refractive index of the photosensitive layer, the refractive index of the first layer, the refractive index of the second layer, the film thickness of the first layer, an integer of 0 or more, and the wavelength of light with which the surface of the photoreceptor is irradiated when an electrostatic latent image is formed satisfy specific relationships.	12-03-2009