1
Yoshinori Hayashi, Seizo Suzuki, Koji Masuda, Hiroyuki Suhara: Optical scanning lens, optical scanning and imaging system and optical scanning apparatus incorporating same. Ricoh Company, Graham & James, June 27, 2000: US06081386 (78 worldwide citation)

An optical scanning lens and an optical scanning and imaging system for use in an optical scanning apparatus for scanning a surface of an optical recording medium, such as a photosensitive material, for writing data thereupon, is constructed to produce a minimum beam spot diameter, in a sub-scanning ...


2
Yoshinori Hayashi, Seizo Suzuki, Koji Masuda: Optical scanning lens and optical scanning apparatus. Ricoh Company, Graham & James, May 30, 2000: US06069724 (60 worldwide citation)

An optical scanning apparatus includes an optical scanning lens composed of a single lens which is arranged and adapted to correct for placement errors of optical elements. The shapes of both surfaces of the optical scanning lens are non-arc in a deflective surface and at least one surface thereof h ...


3
Koji Masuda, Kazuyuki Shimada, Tetsuro Saitoh, Masahiro Ito, Katsuyuki Kitao, Tomoya Ohsugi, Hirokatsu Suzuki: Density unevenness suppressing image forming apparatus and method. Ricoh Company, Oblon Spivak McCelland Maier & Neustadt P C, February 3, 2004: US06686946 (51 worldwide citation)

An image forming apparatus includes a light emitting array composed of a plurality of light emitting elements that emits light fluxes. An imaging element array may be provided so as to perform imaging with the light fluxes on a prescribed plane. A three dimensional exposure intensity distribution of ...


4
Keiichi Sawamura, Yoshiyuki Eto, Junichi Mine, Koji Masuda: Method of producing monolithic catalyst for purification of exhaust gas. Nissan Motor, Schwartz Jeffery Schwaab Mack Blumenthal & Evans, May 6, 1986: US04587231 (50 worldwide citation)

A method of producing a monolithic three-way catalyst for the purification of exhaust gases of internal combustion engines. First, a mixed oxide coating is provided to a monolithic carrier by treating the carrier with a coating slip in which an active alumina powder containing cerium in oxide form i ...


5
Takuya Ikeda, Chiemi Hayashi, Tetsuo Ito, Koji Masuda, Maki Kamikubo: Catalysts for adsorption of hydrocarbons. Nissan Motor, Lowe Price LeBlanc & Becker, April 18, 1995: US05407880 (47 worldwide citation)

A catalyst for the adsorption of hydrocarbons is used in an apparatus for the purification of exhaust gas from an internal engine and comprises a honeycomb monolith carrier, a first layer of at least one zeolite having a different crystalline structure, a second layer containing at least one of Pt a ...


6
Kensaku Kusaka, Tsuyoshi Watanabe, Hisaaki Senba, Koji Masuda, Takeo Yamamoto: Image heating apparatus with multiple temperature detecting members. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, June 22, 1999: US05915146 (28 worldwide citation)

An image heating apparatus includes a heater which heats an image on a recording material, which extends in a direction perpendicular to a moving direction of the recording material; a first temperature detecting member for detecting the temperature of the heater; power controlling device for contro ...


7
Koji Masuda: High activity catalyst for reforming of methanol and process of preparing same. Nissan Motor Company, Schwartz Jeffery Schwaab Mack Blumenthal & Koch, February 12, 1985: US04499205 (25 worldwide citation)

A catalyst for reforming of methanol to hydrogen and carbon monoxide, which is high in activity, selectivity and durability. The catalyst comprises a granular or monolithic carrier which is made of active alumina at least in its surface regions, at least one metal oxide selected from oxides of the r ...


8
Shinji Hanada, Hisaaki Senba, Koji Masuda: Heating apparatus having heater with branch. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 20, 1993: US05204723 (24 worldwide citation)

A heating apparatus includes a heater, the heater including a main resistance layer and a subordinate resistance layer branched from said main resistance layer, which extend in a direction crossing with a movement direction of a recording material and which are supplied with electric power; a select ...


9
Koji Masuda, Hiroshi Koizumi: Image forming elements array, and optical printing head and image forming apparatus using the array. Ricoh Technology Research, Eugene C Rzucidlo, Greenberg Traurig, December 17, 2002: US06496214 (19 worldwide citation)

An image forming elements array includes a plurality of image forming elements which are integrated with each other and are arranged to extend in an arrangement direction so as to generate an image having common magnification. When the distance along the optical axis from an object plane to the inci ...


10
Koji Masuda: Optical print head and image forming apparatus using a rod lens with a predetermined conjugate length. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, April 6, 2004: US06717606 (19 worldwide citation)

An optical print head of the present invention includes a light emitting element array having of a plurality of light emitting elements. A rod lens array has a plurality of rod lenses for focusing light output from the rod lenses on an image carrier in the form of beam spots. The rod lenses each hav ...