Ricoh Company, Ltd.

Mitsubishi Denki Kabushiki Kaisha

Alpha Corporation

Keiichi Miyamoto

Hiroyuki Kawamoto

Keiji Kojima

Tadashi Kitai

Hitomi Kaneko

Hiroyoshi Ishizaki

Katsumi Adachi

Kazunori Tanaka

Hiroaki Kobayashi

Makoto Hino

Shigeru Onoue

Tsuneji Goda

An apparatus divides a photographed image of a sheet-like inspection object into blocks each of which has a size of a predetermined number of pixels by a predetermined number of pixels, calculates a longitudinal variance based on pixel values in a longitudinal direction in each block and a lateral variance based on pixel values in a lateral direction in the block, determines whether the block is a defect candidate using the longitudinal variance and the lateral variance as sheet-like inspection object defect determination evaluation values, and determines, based on one of a length and an area of the blocks determined as the defect candidates, whether the sheet-like inspection object has defect.

Defect inspection apparatus for inspecting sheet-like inspection object, computer-implemented method for inspecting sheet-like inspection object, and defect inspection system for inspecting sheet-like inspection object

An inspection apparatus obtains a correction parameter for correcting the positional shift between a previously read image and a master image, and corrects one of a currently read image or a master image using the correction parameter for the previously read image, before comparing between the currently read image and the master image to detect the positional shift in the currently read image.

Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program

An apparatus, system, method, and non-transitory recording medium storing an image inspection control program, each of which is capable of inspecting a printed image are provided. While generating an inspection image to be used for inspecting a read image obtained by reading the printed image, attribute data indicating, for each pixel in the inspection image, whether the pixel belongs to drawing data in the inspection image is generated. The attribute data is used to process inspection of the read image based on comparison between the read image and the inspection image.

An inspection apparatus, inspection system, inspection method, and inspection control program stored in a recording medium, each of which sets a reference point in a master image and a read image read from a printed image, which is to be used for detecting the positional shift between the read image and the master image, based on determination whether a pattern previously added to the printed image for detecting the positional shift is available or can be used to effectively detect the positional shift.

An apparatus, system, method, and a non-transitory recording medium storing an image inspection control program, each of which is capable of inspecting a printed image based on comparison between a read image read from the printed image and an inspection image. As a portion of the read image is obtained, the size of the obtained portion of the read image is corrected to match the size of the inspection image, using a magnification ratio previously obtained. After matching the sizes of the read image and the inspection image, the read image is compared with the inspection image to inspect the read image.

An image test apparatus includes a color-image-data acquiring unit that acquires color image data being data of an image to be formed with a color material; a master-image-data generating unit that converts the color image data depending on transparent image data being data of an image to be formed with a transparent color material, thereby generating master image data; and an image testing unit that tests, using the master image data, a test image data which is generated by optically reading a print image from a printed matter on which the print image based on the color image data and the transparent image data has been printed.

Image test apparatus, image test system, and image test method for testing a print image based on master image data

An image inspection apparatus obtains a threshold value indicating an allowable range of offset differences between an output target inspection image and a pre-provided inspection image, and determines whether to inspect a read image obtained by reading an output target image formed on a recording sheet having a pre-provided image, using the threshold value.

Image inspection method, apparatus, control program overlapping inspection images to obtain positional shift

An AC generator structure allows the assembly of a stator thereof to be easily automatized for rationalization of the manufacturing process, while ensuring suppression of heat generation and providing an enhanced cooling function during operation. The stator includes a core and a winding assembly having stator windings. A rotor is enclosed by the core. A rectifier device rectifies an AC power taken out from the winding assembly. In the stator, outgoing conductors form output conductor end portions and connecting conductor end portions, which are substantially parallel to the core's center axis. The connecting conductor end portions are connected to a connecting member distinct from the rectifier device and disposed offset laterally from the stator's center axis. The stator windings are interconnected in a predetermined connection pattern through the connecting member. The output conductor end portions, through which the AC power is taken out, are connected to the rectifier device.

Vehicle-onboard AC generator

Vehicle alternator

The cylinder lock according to the present invention comprises a latch 19 movably disposed between the joint position connecting the key cylinder 16 and a driver 18 and the release position disengaging the key cylinder 16 and a driver 18; and a clutch 20 for transferring the latch 19 to the release position when a sleeve 13 rotates relatively to a housing 11 with an improper key. When a proper key is inserted into the key cylinder 16, it can be rotated without rotation of the sleeve 13 so that the driver 18 can be rotated to the locked or unlocked position through the latch 19 which drivingly connects the key cylinder 16 and the driver 18. When an improper key is inserted into the key cylinder 16 and rotated, the sleeve 13 is rotated with the key cylinder 16 through tumblers 17 so that radial movement of the clutch 20 disengages the latch 19 and driver 18, thereby preventing unauthorized unlocking of the cylinder lock 10 without rotation of the driver 18.

Cylinder lock resistible against breaking

A cylinder shaft projects from a key cylinder along the center line of a sleeve, and first and second case shafts project from a case. A spring is coiled on the first case shaft, and the cylinder shaft is placed between the first and second case shafts. The cylinder shaft and the second case shaft are placed between both legs of the spring. When the key cylinder is rotated with respect to the sleeve by the proper key being inserted in the key cylinder, the spring imparts returning force to the cylinder shaft that is making an arcuate movement in a circular-arc groove formed in the case.

Growing community of inventors

Kanagawa, Japan

Keiichi Miyamoto