Ricoh Company, Ltd.

Canon Kabushiki Kaisha

Kabushiki Kaisha Topcon

Bridgestone Tire Company Limited

Other

Nkk Corporation

Nippon Piston Ring Co., Ltd.

Bridgestone Corporation

Ngk Insulators, Inc.

Tokyo Shibaura Denki Kabushiki Kaisha

Honda Motor Co., Ltd.

Yamaha Corporation

Nippon Electric Co., Ltd.

Sony Corporation

Nippon Telegraph and Telephone Corporation

Yasuo Suzuki

Takaaki Ikegami

Tetsuro Suzuki

Kenichi Watanabe

Takashi Yokoyama

Nozomu Tamoto

Masaru Abe

Tomoyuki Shimada

Akihiro Sugino

Takeshi Nakamura

Hidetoshi Kami

Shunsuke Takeguchi

Masaomi Sasaki

Takashi Sato

Takahiro Watanabe

Kazukiyo Nagai

Hiroshi Nakai

Yasushi Nakazato

Kenji Takahashi

Masahide Yamashita

Nobuaki Date

Eiji Kurimoto

Mitsuru Naruse

Hitoshi Iwatsuki

Mikio Nakasugi

Manabu Kato

Shigeru Yoshida

Jun Yamane

Tsutomu Watanabe

Akira Saito

Masafumi Wataya

Yusuke Asai

Shigenori Yaguchi

Kei Yasutomi

Yasuyuki Yamashita

Yoshimasa Ogawa

Toshiro Tezuka

Akira Tamura

Kohichi Ohshima

Michitaka Sasaki

Yasuhito Eto

Haruhito Tsuboi

Taku Fukita

Hiroyuki Takano

Nobuhiro Kasama

Akihiro Fukutomi

Ryoichi Nakajima

Takaaki Ashinuma

Shigeru Aoi

Toshihiko Iwasaki

Hiroshi Fukuyama

Hideyuki Miyamoto

Isshin Sato

Isamu Takagahara

Masayuki Koyano

Takatoshi Sugiyama

Morihiro Sudo

Tsutomu Kikawa

Yoshiaki Kawasaki

Eiichi Yanagi

Jun Aoto

Yutaka Mizushima

Kohji Ue

Hongguo Li

Junya Azami

Masanobu Kanoto

Katsuichi Ohta

Jun Akiyama

Hideo Nakamori

Harukazu Okuda

Kiyoshi Minakuchi

Michio Kimura

Yoshihiko Hirose

Takayuki Aizawa

Yoshiyuki Hatano

Naotoshi Kirihara

Akira Matsuda

Masaharu Tsukada

Kaoru Tadokoro

Kiichi Kamoda

Mikiko Imazeki

Kazuhiko Ito

Tuyosi Fujita

Daisei Uchida

Kazuo Kitamura

Shinzo Higuchi

Megumi Kawahara

Sohichiroh Iida

Masahiro Umehira

Takehiko Kinoshita

Mitsuo Kawase

Takehiko Shibata

Toshihiro Iwai

Takashi Rokutanzono

Yushi Matuo

Kazunari Yamada

Tsuyoshi Fujita

Kohji Uchida

Akio Sato

Makoto Shiho

A grease composition for a constant-velocity joint includes a mineral oil, a thickener, a molybdenum dithiocarbamate, a potassium borate hydrate, and a zinc dialkyldithiophosphate, wherein a content of the molybdenum dithiocarbamate is 1.2% by mass or more and 8% by mass or less, a content of the zinc dialkyldithiophosphate is 0.3% by mass or more and 2.0% by mass or less, and a content of the potassium borate hydrate is 0.28% by mass or more and 1.9% by mass or less, and wherein a mass ratio of the content of the molybdenum dithiocarbamate to the content of the potassium borate hydrate (molybdenum dithiocarbamate/potassium borate hydrate) is 2 or more and 13 or less, and a mass ratio of the content of the zinc dialkyldithiophosphate to the content of the potassium borate hydrate (zinc dialkyldithiophosphate/potassium borate hydrate) is 0.5 or more and 3.6 or less.

Grease composition for a constant-velocity joint

An image carrier deterioration degree evaluating apparatus for evaluating a degree of deterioration of an image carrier of an image forming apparatus, the image carrier deterioration degree evaluating apparatus including: an image deletion detecting unit that detects image deletion by obtaining latent image information written on the image carrier; an image deletion reducing unit that performs a process of reducing image deletion when the image deletion detecting unit detects image deletion, and an image carrier deterioration degree evaluating unit that drives the image deletion detecting unit and the image deletion reducing unit alternately one or more times each, and evaluates a degree of deterioration of the image carrier by using the latent image information obtained one or more times by the image deletion detecting unit.

Image carrier deterioration degree evaluating device, image carrier failure predicting device, and image forming apparatus

The present invention provides an image bearing member that includes: a photoconductor; and a heating unit which heats the photoconductor, wherein the photoconductor includes: a support; a charge generating layer on the support, a charge transport layer, and a crosslinked charge transport layer in this order, wherein the crosslinked charge transport layer includes a reaction product of a radically polymerizable compound with three or more functional groups which does not have a charge transporting structure, and a radically polymerizable compound with one functional group, which compound has a charge transporting structure.

Image bearing member and image forming method using thereof, and image forming apparatus and process cartridge

A jig mounting apparatus has a detection optical system that detects reference marker of an eyeglass lens, is configured so as to determine an mounting point based on the reference marker detected by the detection optical system and position the mounting center of jig, which is used in processing the eyeglass lens, on the mounting point to mount the jig on the surface of the eyeglass lens, in which the detection optical system includes: a focusing optical system that focuses a light-emitting optical flux from a light source on the surface of the eyeglass lens, where hidden marks are formed, via an aperture stop; a reflection plate that reflects an optical flux focused by the focusing optical system and passed through the eyeglass lens; and an imaging device that is provided on a position optically approximately conjugate with the aperture stop and configured to focus on a space portion along an optical axis direction from the surface of the eyeglass lens.

Jig mounting apparatus

An image forming method including: forming an electrostatic latent image on an image bearing member; developing the latent image with a toner; transferring the toner image onto a receiving material; and fixing the toner image. The image bearing member includes a substrate, and a charge generation layer, a charge transport layer and a crosslinked charge transport layer, wherein the crosslinked charge transport layer includes a compound obtained from radical polymerizable monomers including a monomer having three or more functional groups and no charge transport structure and a monomer having one functional group and a charge transport structure. The toner includes a binder resin, a colorant, and a release agent, wherein tetrahydrofuran-soluble components of the binder resin have a molecular weight distribution such that at least one peak is observed in a range of from 1,000 to 10,000 and the half-width of the molecular weight distribution curve is not greater than 15,000.

Image forming method, and image forming apparatus and process cartridge using the image forming method

A photoconductor comprising a photosensitive layer disposed on a support, wherein the photosensitive layer has a crosslinked layer and the crosslinked layer is produced by curing a dispersion in which at least one of an acryl-modified polyoraganosiloxane having a radical reactivity and an acryl-modified polyoraganosiloxane having an amine structure is dispersed in a radical polymerizable monomer.

Photoconductor, producing method thereof, image forming process and image forming apparatus using photoconductor, and process cartridge

An image forming process using an electrostatic latent image carrier containing a support and a photoconductive layer including: a charge generating layer, a charge transportable layer, and a cross-linked charge transportable layer which are disposed on the support in this order and the cross-linked charge transportable layer comprises a compound produced by the reaction between a trifunctional or more functional radical-polymerizable compound having no charge transportable structure, and a monofunctional radical-polymerizable compound having a charge transportable structure, and a toner produced in the form of particles by producing an adhesive base material through reacting a compound having an active hydrogen group with a polymer which can be reacted with the above-noted compound having an active hydrogen group in an aqueous medium.

Process cartridge, image forming apparatus, and image forming process

The invention provides an ultra-sonic jet multi-photon resonance ionization type mass analyzing device. The laser beam ionization mass analyzing device includes a pulsed gas ejecting devicefor ejecting in pulse mode carrier gas containing sample molecules into a vacuum vessel, a laser beam irradiation system for irradiating laser beam for selective photo-reaction of sample molecules in said pulsed gas, repeller and extraction electrodesandgenerating an electric field for extraction of sample molecular ions generated by the photo reaction and a mass analyzing devicefor mass analysis of extracted sample molecular ions. The laser beam irradiation system is set to irradiate laser beam to sample molecules near a position whereat a pressure time distribution of pulsed gas translating in the vacuum vesseltransitions from a flat-top pressure distribution to a triangular pressure distribution.

Laser ionization mass spectroscope

Image forming apparatus and process cartridge

A photoreceptor including an electroconductive substrate; a photosensitive layer; and optionally a protective layer, wherein an outermost layer thereof includes a filler, an organic compound having an acid value of from 10 to 700 mg KOH/g and at least one compound selected from the group consisting of compounds having the following formulae (1) and (2): wherein R(R) and R(R) independently represent a substituted or an unsubstituted aromatic hydrocarbon group, or a substituted or an unsubstituted alkyl group, and optionally share bond connectivity to form a heterocyclic group including a nitrogen atom; Ar(Ar) and Ar(Ar) independently represent a substituted or a unsubstituted aromatic ring group; k (K) and m (M) independently represent 0 or an integer of from 1 to 3, wherein k (K) and m (M) are not 0 at the same time; and n (n') represents an integer of from 1 to 3.

Photoreceptor, image forming method and image forming apparatus using the photoreceptor, process cartridge using the photoreceptor and coating liquid for the photoreceptor

A photoreceptor including a photosensitive layer including a specific diamine compound, or a photoreceptor including an electroconductive substrate; a photosensitive layer located overlying the electroconductive substrate; and optionally a protective layer located overlying the photosensitive layer, wherein an outermost layer of the photoreceptor includes a filler, an organic compound having an acid value of from 10 to 700 mgKOH/g and a specific diamine compound. An image forming method, an image forming apparatus and a process cartridge using the photoreceptor are also provided. A method for manufacturing the photoreceptor including the steps of preparing a coating liquid including the filler, the organic compound, the specific diamine compound and an antioxidant; and coating the coating liquid is also provided.

Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the electrophotographic photoreceptor

An electrophotographic photoconductor including an electroconductive support and a photoconductive layer formed thereon, which contains a phthalocyanine pigment and a disazo pigment of formula (I): wherein A and B are coupler radicals having different structures.

Electrophotographic photoconductor

A lens grinding processing apparatus of the present invention has lens rotating shaftsandfor holding an eyeglass lens ML, a lens retaining members () fixed respectively to opposed end sections of the lens rotating shaftsandcapable of slanting adjustably, a drilling device (drilling processing device) for drilling a hole for a point frame into the slanted eyeglass lens ML, and a grinding stone (grinding stone, chamfering stones) for grinding and processing a circumferential part of the eyeglass lens ML.

Lens grinding processing apparatus

A projection type image display device includes a plurality of image display elements that perform modulation of light rays in accordance with an image signal, a color synthesizing optical element for synthesizing light rays having mutually different wavelength ranges that have been modulated by these image display elements by use of a dichroic membrane, lens groups having a positive refractive power as a whole that are disposed between the image display element and the color synthesizing optical element, and a projection optical system for projecting an image synthesized by the color synthesizing optical element. The projection type image display device further includes a storage circuit for storing data used to correct the brightness irregularity of a projected image, and a brightness irregularity correcting circuit for correcting brightness irregularity of a projected image on the basis of the data stored in the storage circuit.

Projection type image display device

To provide a template holder in which parts such as screws for mounting a template to a template mounting member is not lost. A template holder, in which in a state in which an elastic strutis inserted into a holding holeof a template, the templateis pressed and is caused to abut upon an end surfaceof a base memberby the elastic strutby operating a pressing strut, whereby while the templateis mounted to a holding member, the holding memberis departed from the templateby operating the pressing strutto thereby enable the templateto be removed from the elastic strutand the holding member, wherein the pressing strutand the elastic strutare held by the holding memberwhen the templateis attached and detached.

Template holder

Growing community of inventors

Tokyo, Japan

Yasuo Suzuki