Mita Industrial Co., Ltd.

Keyence Corporation

Mitsuhiro Kashihara

Akihiko Ichiba

Tsutomu Nagata

Shinji Kikuta

Hiroshi Kubota

Motoyuki Fukuda

Kazuhito Takaoka

Toshio Nishino

Observation fields of an electron microscope image and an optical magnifying observation image are smoothly switched. A magnifying observation apparatus includes: a pair of end-face plates closes end faces of a body portion; an electron beam imaging device mounted on a first position of a cylindrical shaped outer surface of the body portion; an optical imaging device mounted on a second position being different from the first position in the outer surface; a rotating device that rotates the both imaging devices along the outer surface such that a distance from each of the both imaging devices to a common rotation axis of the both imaging devices is kept constant and optical axes of the both imaging devices are oriented toward the rotation axis; a specimen stage that is disposed in the chamber, and arranged to a position that is substantially the same to a height of the rotation axis.

Magnifying observation apparatus

A latent electrostatic image developing device. A developer agitating/conveying mechanism is disposed in a development housing and has an agitating/conveying member for conveying a developer, while agitating it, along a developer application. A toner concentration detector is disposed in the bottom wall of the development housing to oppose the agitating/conveying member. The upper surface and the side surface of a detector portion of the toner concentration detector are connected by an arcuate surface or a chamfered surface. The toner concentration detector is fitted into an opening formed in the bottom wall of the development housing, and the upper surface of the detector portion protrudes from the inner surface of the bottom wall of the development housing by an amount nearly corresponding to the radius of the arcuate surface or the height of the chamfer of the chamfered surface.

Latent electrostatic image developing device having a toner

A developer agitating/conveying device having at least one partition wall disposed within a housing with a developer transfer port at the central portion thereof; a first agitating/conveying member disposed along the partition wall on one side of the partition wall for conveying the developer from the opposite end portions toward the central portion thereof, the first agitating/conveying member having a first helical blade and a second helical blade; and a second agitating/conveying member disposed along the partition wall on the other side of the partition wall for conveying the developer from the central portion toward the opposite end portions thereof, the second agitating/conveying member having a first helical blade and a second helical blade. The first and second helical blades provided on the first agitating/conveying member for helically wound in directions opposite to each other and are constructed such that their respective inner end half pitches overlap with a phase angle of 180 degrees relative to each other so as not to intersect each other.

Developer agitating/conveying device

Growing community of inventors

Osaka, Japan

Mitsuhiro Kashihara