Canon Kabushiki Kaisha

Other

Yamakawa Yakuhin Kogyo Kabushiki Kaisha

Nissan Chemical Industries Limited

Cannon Kabushiki Kaisha

Kazuo Yoshinaga

Kazuharu Katagiri

Yomishi Toshida

Toshikazu Ohnishi

Takeo Eguchi

Koichi Sato

Nobuatsu Sasanuma

Shinobu Arimoto

Takehiko Nakai

Toshio Hayashi

Tsutomu Utagawa

Tetsuya Nagase

Shinjiro Okada

Junichiro Kanbe

Yutaka Kurabayashi

Kazuo Isaka

Hideaki Mitsutake

Shuzo Kaneko

Kenji Shinjo

Takeshi Miyazaki

Hiroshi Tanioka

Akihiro Mouri

Yuichi Hashimoto

Hiroyuki Nohira

Akira Tsuboyama

Shunichiro Nishida

Hidetoshi Suzuki

Katsumi Kurematsu

Tsuyoshi Shibata

Yoshio Takasu

Takashi Kai

Nobuo Minoura

Hideki Kobayashi

Osamu Taniguchi

Toru Masatomi

Keiko Hiraoka

Shinichi Nakamura

Yukio Hanyu

Katsuichi Shimizu

Masataka Yamashita

Masataka Kawahara

Nobuo Kushibiki

Yukio Nagase

Masanao Kamei

Hiroyuki Kitayama

Hideyuki Kawagishi

Yutaka Komiya

Yoshio Kashizaki

Katsuya Oikawa

Mamoru Tanaka

Seizo Miyata

Yoshiki Uchida

Koichi Egara

Kikuko Takeuchi

Chieko Hioki

Mariko Kai

Masato Tanaka

Tetsuro Fukui

Kiyoshi Sakai

Kenji Nakamura

Masashi Miyagawa

Masato Katayama

Tadashi Kobayashi

Teigo Sakakibara

Hajime Sakata

Tatsuhiko Chiba

Katsumi Aoki

Hajime Miyazaki

Hisao Yaegashi

Ryoichi Fujita

Koichi Tomiyama

Satoshi Yasuda

Hiroaki Kawakami

Shinya Yachi

Yuko Sato

Ryoji Fujiwara

Yoshinobu Sato

Itaru Takaya

Norihiro Mochizuki

Toyoko Kobayashi

Kazutaka Arai

Junko Kuramochi

Moritoshi Miyamoto

Shinsuke Takeuchi

Yukiko Futami

Yasuko Hayashi

Takahiro Ishizuka

Yayoi Nagao

Shuzo Keneko

Michihiro Yamada

Yuuta Kumano

This invention provides an image reading device capable of precise detection of the optical signal over a wide wavelength range, by forming a photoelectric converting unit for converting the visible light into an electrical signal and a photoelectric converting unit for converting the invisible light into an electrical signal, in monolithic manner on a single semiconductor chip.

Image reading device

Organosilicon-modified charge transporting compound and curable composition containing the compound and having charge transporting ability

The present invention provides an electrophotographic photosensitive member having a substrate and a photosensitive layer thereupon, wherein a surface layer of the photosensitive member contains a resin which is obtained by being subject to polycondensation as a monomer component only an organosilicon-modified positive hole transporting compound; a process cartridge which has, in addition to the electrophotographic photosensitive member, at least one from among a primary charging means, a developing means, and a cleaning means placed into a housing; and the image forming apparatus using the electrophotographic photosensitive member.

Electrophotographic photosensitive member, a process-cartridge inclusive thereof, and an image forming apparatus

An image processor includes a first reader which obtains a first signal corresponding to visible information read on an original, and a second reader which obtains a second signal corresponding to invisible information on the original. A comparator compares the first and second signals to discriminate a predetermined pattern on the original.

Method and apparatus for determining a predetermined pattern on an original based on visible and invisible information on the original

A yellow toner suitable for electrophotography is formed by dispersing a yellow colorant mixture in a binder resin. The yellow colorant mixture is formed of at least a pigment of formula (1) or (2) below, and a dye of formula (3) below:

Yellow toner, process for producing the tower and image forming method using the toner

An invisible information detection apparatus includes parts that irradiate a light onto a medium, detect infrared light generated from the medium, and judge a specific pattern consisting of a combination of two areas on the medium in accordance with the detection result. One of the areas represents higher reflectance than the reflectance of the medium in substantially the same infrared wavelength region, and the other area represents lower reflectance than that of the medium. An invisible information detection method comprises an irradiation step, a detection step and a judgment step. The judgment step judges a specific pattern of a combination of two areas on the medium in accordance with the result from the detection step. One of the areas represents higher reflectance, and the other area represents lower reflectance, as compared to the reflectance of the medium, in substantially the same infrared wavelength region.

Invisible information detecting apparatus

Image reading device with offset faces for visible and non-visible light

An object of the present invention is to provide an image processing apparatus and an image processing method both offering a high-precision and general-purpose capability of identifying an image and performing appropriate processing depending on whether identification is effected. In the image processing apparatus and image processing method, image data is detected in visible and invisible light reflected from each of a target pixel and surrounding pixels. Based on the image data detected in visible and invisible light, a specific pattern is identified. The specific pattern appears substantially the same in color as a surrounding area under visible light but different in characteristic therefrom under invisible light, which is identified using the image data of the target pixel and surrounding pixels provided by a detector. The image processing apparatus is controlled depending on whether the identification is effected.

Image processing apparatus and method, and image reading apparatus

Visible information of the document sheet and information other the visible information are efficiently read by an image sensing apparatus including a first line sensor for reading the visible information of the document sheet and a second line sensor for reading the information other than the visible information.

Photosensor with filter for cutting off the input of invisible

An electrophotographic photosensitive member is disclosed which has a photosensitive layer and a protection layer. The protection layer contains a particulate colloidal silica and a siloxane resin to have a contact angle of water of not less than 90.degree.. The photosensitive member has a lowered surface energy and excellent mechanical and electrical durability.

Electrophotographic photosensitive member, and electrophotographic

An electrophotographic photosensitive member has a photosensitive layer formed on a support. A surface layer (or the outermost layer) of the photosensitive layer contains a fluorine-modified organic silicone resin represented by the following average unit formula:

The present invention provides an electrophotographic photosensitive member having a substrate and a photosensitive layer thereupon, wherein a surface protecting layer of the photosensitive member contains a resin which is obtained by curing a curable organosilicon polymer and an organosilicon-modified positive hole transporting compound; a process-cartridge which has, in addition to the electrophotographic photosensitive member, at least one from among a primary charging means, a developing means, and a cleaning means placed into a housing, and which can be reversibly mounted to an image forming apparatus; and the image forming apparatus using the electrophotographic photosensitive member.

Electrophotographic photosensitive member, a process-cartridge inclusive

An electrophotographic photosensitive member is constituted by disposing a photosensitive layer including a charge generation layer and a charge transport layer on an electroconductive support. The charge transport layer has a thickness of at most 12 .mu.m and is formed by dispersing therein particles having a particle size of 1-3 .mu.m at a density of 1.times.10.sup.4 -2.times.10.sup.5 particles/mm.sup.2. The charge transport layer and the particles described above provides a difference in refractive index of at least 0.10. The photosensitive member is effective in providing good images free from black spots and interference fringes and with a good gradation-reproducing characteristic when used as a structural member of a process cartridge and an image forming apparatus.

Electrophotographic photosensitve member and image forming apparatus

An image forming apparatus has an electrophotographic photosensitive member with a support, a photosensitive layer with a thickness (T), a charging subunit, an exposure subunit, a developing subunit, and a transfer subunit. The exposure subunit illuminates the charged photosensitive member with a light beam having a spot area (S), such that the product S.times.T is 5,000-12,000 .mu.m.sup.3.

Image forming apparatus and process cartridge having exposure device

Growing community of inventors

Machida, Japan

Kazuo Yoshinaga