1
Masumi Ikesue, Takashi Ikeda: Toner replenishing device. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt, November 7, 1989: US04878603 (69 worldwide citation)

A toner replenishing device for replenishing toner to a toner storage area, from where the toner is supplied to a developing section, includes a holder for releasably holding a cartridge containing therein a quantity of toner, which may be located at a cartridge mounting and dismounting position and ...


2
Masumi Ikesue, Yasuhiro Takahashi: Sheet aligning device. Ricoh Company, Oblon Fisher Spivak McClelland & Maier, April 14, 1987: US04657239 (56 worldwide citation)

A sheet aligning device including a pair of side walls located parallel to each other and defining therebetween a space for stacking a plurality of sheets. At least one of the side walls is movable in reciprocatory movement widthwise of the sheets stacked between the side walls to force the sheets a ...


3
Susumu Tatsumi, Masumi Ikesue, Masao Hosaka, Nobuo Kasahara: Electrostatographic apparatus comprising automatic document type determination means. Ricoh Company, David G Alexander, December 16, 1980: US04239374 (55 worldwide citation)

An image of an original document (16) is sensed to determine if the document (16) is a printed document (the image consists of characters and symbols) or a photographic document. The exposure illumination intensity, developing bias voltage and/or other variable operating parameters are controlled in ...


4
Masumi Ikesue, Takashi Ikeda: Toner replenishing device. Ricoh Company, Oblon Fisher Spivak McClelland & Maier, September 16, 1986: US04611730 (51 worldwide citation)

A toner replenishing device for replenishing toner to a toner storage area, from where the toner is supplied to a developing section, includes a holder for releasably holding a cartridge containing therein a quantity of toner, which may be located at a cartridge mounting and dismounting position and ...


5
Masumi Ikesue, Takashi Yano, Susumu Tatsumi, Hiroyuki Idenawa, Isao Nakamura, Tatsuo Tani: Variable magnification electrostatic copying machine. Ricoh Company, David G Alexander, July 7, 1981: US04277163 (44 worldwide citation)

The vertical and horizontal lengths of an original document (28) are automatically sensed and compared with the vertical and horizontal lengths of a copy sheet (38) and the reduction ratio of a variable magnification optical system (33) is automatically adjusted in accordance therewith so that the m ...


6
Masumi Ikesue, Takashi Ikeda: Developer supply device for dry process electrophotographic copier. Ricoh Company, David G Alexander, February 10, 1987: US04641945 (36 worldwide citation)

A toner supply device for supplying a developing unit of an electrophotographic copier with a toner developer which is stored in a cylindrical cartridge. The cartridge is fixed in a horizontal position in the vicinity of the developing unit of the copier while occupying a minimum of space. The toner ...


7
Masumi Ikesue, Takeshi Iijima, Yuichi Ueno, Shigekazu Enoki, Atsushi Kawamura, Michihito Ohashi: Developer recycling system and developer cartridge therefor. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt, April 16, 1996: US05508794 (35 worldwide citation)

A developer recycling system is provided for replenishing a fresh developer to a developing device of an image forming apparatus and collecting it after use. A developer cartridge applicable to the system is also provided. When the fresh developer is replenished from the cartridge to the developing ...


8
Masumi Ikesue, Takashi Ikeda: Toner replenishing device. Ricoh Company, Oblon Fisher Spivak McClelland & Maier, May 17, 1988: US04744493 (32 worldwide citation)

A toner replenishing device for replenishing toner to a toner storage area, from where the toner is supplied to a developing section, includes a holder for releasably holding a cartridge containing therein a quantity of toner, which may be located at a cartridge mounting and dismounting position and ...


9
Masayuki Shinada, Masumi Ikesue, Mitsutoyo Kikuno, Tatsuya Murai: Document recycling copier for copying documents of varying sizes. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt, April 16, 1991: US05008709 (32 worldwide citation)

A document recycling copier having, in a system configuration, a copier body, a recycling document handler which may be loaded with a stack of documents of different sizes, and a finisher for automatically arranging and binding a series of copied paper sheets. The copier is capable of copying the in ...


10
Seiji Oka, Yasushi Akiba, Masumi Ikesue, Masakazu Nakada, Hiroyasu Itou: Recyclable toner container for an image forming apparatus. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, November 9, 1999: US05983059 (28 worldwide citation)

A recyclable toner container having a hollow cylindrical body, a toner outlet at one end of the container, and a removable cap fitted in the toner outlet. The cap have a plurality of circumferential protuberances on an outer periphery thereof and contacting the inner periphery of the toner outlet. T ...



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