1
Tadashi Shinohara, Yasushi Nakazato, Toshiya Sato, Mitsugu Sugiyama, Nobuo Iwata, Motonori Hanada, Hideo Nakagawa: Color image forming apparatus. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, April 30, 2002: US06381435 (69 worldwide citation)

An image forming apparatus includes a plurality of image formation units which print an image of different color on a paper and also form positional deviation detection marks and image density regulation marks, on a conveyer belt or on at least one of a recording medium and an intermediate transfer ...


2
Tetsuo Yamanaka, Hiroyasu Shijo, Kazuhiko Kobayashi, Jun Hosokawa, Motonori Hanada, Tadashi Shinohara, Kouta Fujimori: Method and apparatus for image forming capable of effectively performing color displacement detection. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, December 7, 2004: US06829465 (27 worldwide citation)

A method of color displacement detection for use in a color image forming apparatus sequentially forming image layers in different colors on a photosensitive member and overlaying the image layers on one after another into a color image on a transferring member. This method includes steps of forming ...


3
Motonori Hanada, Jun Hosokawa, Kouta Fujimori, Kazuhiko Yuuki: Image forming apparatus, replacement assembly for image forming apparatus and integrated circuit chip therefor. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, February 10, 2004: US06690896 (10 worldwide citation)

The present invention provides an electro photographic image forming apparatus comprising a replacement assembly having a toner container attachable to the image forming apparatus, a feeding unit to feed toner from the toner container to a development unit, and a read/write non-volatile memory, wher ...


4
Takatsugu Fujishiro, Nobuhiko Umezawa, Hajime Oyama, Motonori Hanada: Developing unit for an image forming apparatus having a magnetic rotating blade agitator. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, September 14, 1999: US05953568 (8 worldwide citation)

A developing unit of the present invention includes a developing roller facing a photoconductive element and formed with a magnetic layer on its circumference. The magnetic layer has a plurality of magnetic poles of opposite polarities alternating with each other and each extending in the axial dire ...


5
Tadashi Shinohara, Yasushi Nakazato, Toshiya Sato, Mitsugu Sugiyama, Nobuo Iwata, Motonori Hanada, Hideo Nakagawa: Color image forming apparatus. Ricoh Company, OBLON SPIVAK McCLELLAND MAIER & NEUSTADT PC, June 21, 2001: US20010004425-A1

The image forming apparatus comprises a plurality of image formation units which print an image of different color on a paper and also form positional deviation detection marks and image density regulation marks, on a conveyer belt that conveys the paper, when a request such a received. When request ...


6
Mariko Aduma, Tetsuo Noji, Tetsuo Isoda, Seiji Ozawa, Manabu Satoh, Yoshihiro Sugiyama, Motonori Hanada: Product information contrast system. Ricoh Company, Morrison & Foerster, October 28, 2004: US20040216040-A1

A product information contrast system contrasts a plurality of items of product information that contain specifications indicating properties of products. The product information contrast system comprises a product information management unit which manages the plurality of items of product informati ...


7
Tetsuo Yamanaka, Hiroyasu Shijo, Kazuhiko Kobayashi, Jun Hosokawa, Motonori Hanada, Tadashi Shinohara, Kouta Fujimori: Method and apparatus for image forming capable of effectively performing color displacement detection. Oblon Spivak Mcclelland Maier & Neustadt PC, September 26, 2002: US20020136570-A1

A method of color displacement detection for use in a color image forming apparatus sequentially forming image layers in different colors on a photosensitive member and overlaying the image layers on one after another into a color image on a transferring member. This method includes steps of forming ...


8
Motonori Hanada, Jun Hosokawa, Kouta Fujimori, Kazuhiko Yuuki: Image forming apparatus, replacement assembly for image forming apparatus and integrated circuit chip therefor. Oblon Spivak Mcclelland Maier & Neustadt PC, July 4, 2002: US20020085848-A1

The present invention provides an electro photographic image forming apparatus comprising a replacement assembly having a toner container attachable to the image forming apparatus, a feeding unit to feed toner from the toner container to a development unit, and a read/write non-volatile memory, wher ...