1
Toshinari Kobayashi, Kenji Aida, Kazuo Saito, Akihiko Zako, Sadaki Kodera, Keiichi Sato, Toshiyuki Fujiyoshi, Yoshihiro Mori: Dust suction head for electric vacuum cleaner. Sanyo Electric, Armstrong Westerman Hattori McLeland & Naughton, September 26, 2000: US06122798 (88 worldwide citation)

A dust suction head for use in an electric vacuum cleaner, having an air suction port at the bottom of the head. The head has a brush chamber which accommodates therein a freely rotatable brush having blades that extend along the shaft of the rotational brush. The head additionally has an opening an ...


2
Keiichi Sato, Yuji Kawaragi, Masaki Takai, Tooru Ookoshi: Hydroformylation process and bisphosphite compound used therein. Mitsubishi Kasei Corporation, Oblon Spivak McClelland Maier & Neustadt, August 10, 1993: US05235113 (59 worldwide citation)

A hydroformylation process for preparing a hydroformylated product by reacting an olefinic compound with hydrogen and carbon monoxide in the presence of a Group VIII metal catalyst, in the reaction of which there is present a phosphite compound having the formula (I), ##STR1## wherein R.sup.1 and R. ...


3
Masato Yanagi, Makoto Dohi, Hideyuki Ishiguro, Keiichi Sato: Method of indicating time or temperature-time accumulated value as color change, and materials therefor. Toyo Ink Manufacturing, Wenderoth Lind & Ponack, May 26, 1998: US05756356 (44 worldwide citation)

A method of indicating a time or a temperature-time accumulated value as a color change (degree of color development), which comprises providing an oxidation-polymerizable dyestuff and the oxidizing agent in a non-contact state and bringing the oxidation-polymerizable dyestuff and the oxidizing agen ...


4
Keiichi Sato, Yuji Kawaragi: Method for recovering a Group VIII metal solid complex and hydroformylation method. Mitsubishi Kasei Corporation, Oblon Spivak McClelland Maier & Neustadt, March 24, 1992: US05099047 (30 worldwide citation)

A method for recovering a Group VIII metal solid complex from an organic compound-containing solution containing a Group VIII metal complex, wherein the Group VIII metal complex is precipitated in the presence of a trialkyl phosphine of the following formula (I): ##STR1## wherein each of R.sub.1, R. ...


5
Keiichi Sato, Yuji Kawaragi, Masaki Takai, Tooru Ookoshi: Hydroformylation process and bisphosphite compound used therein. Mitsubishi Kasei Corporation, Oblon Spivak McClelland Maier & Neustadt, February 21, 1995: US05391801 (26 worldwide citation)

A hydroformylation process for preparing a hydroformylated product by reacting an olefinic compound with hydrogen and carbon monoxide in the presence of a Group VIII metal catalyst, in the reaction of which there is present a phosphite compound having the formula (I), ##STR1## wherein R.sup.1 and R. ...


6
Kazuo Tano, Keiichi Sato, Toru Okoshi: Hydroformylation process for preparation of aldehydes and alcohols. Mitsubishi Chemical, Oblon Fisher Spivak McClelland & Maier, July 9, 1985: US04528403 (24 worldwide citation)

A hydroformylation process which comprises hydroformylating an olefinic compound by reacting it with water gas in a catalyst solution containing rhodium and an oxide of an organic trivalent phosphorus compound; adding an organic trivalent phosphorus compound to the reaction mixture, followed by dist ...


7
Keiichi Sato, Yuuji Kawaragi, Yasuko Higashino: Dimerization method of lower olefins and alcohol production with dimerized products. Mitsubishi Kasei Corporation, Oblon Spivak McClelland Maier & Neustadt, August 29, 1995: US05446213 (18 worldwide citation)

The present invention is directed to a method of dimerizing lower olefins which comprises dimerizing a lower olefins in the presence of a catalyst, wherein the catalyst used comprises a nickel compound, an organic aluminum compound, and a phosphite compound having the general formula (I): ##STR1## w ...


8
Shun Kawabe, Keiichi Sato, Daiya Yamashita, Haruo Nakayama, Koji Shiraishi, Keizo Matsumoto: Method of maufacturing a leading edge structure for aircraft. Honda Giken Kogyo Kabushiki Kaisha, Lyon & Lyon, September 15, 1998: US05807454 (18 worldwide citation)

A leading edge structure for an aircraft has an outer wall, an inner wall disposed within the outer wall and including a partition with, the outer wall, the inner wall and the partition jointly defining a hot-air chamber, and a plurality of flow-rectifying fins or disposed in the hot-air chamber and ...


9
Keiichi Sato, Yuuji Kawaragi, Yasuko Higashino: Method for dimerizing butenes, dimeric composition of butenes and method for producing alcohols by means thereof. Mitsubishi Kasei Corporation, Oblon Spivak McClelland Maier & Neustadt, May 9, 1995: US05414160 (16 worldwide citation)

A method for dimerizing an n-butene wherein a catalyst system is used which is produced in situ from an organonickel compound having no nickel-halogen bond, a triarylphosphine and/or a monoalkyldiarylphosphine, an organoaluminum compound and hydrogen. The resulting octenes are excellent as a raw mat ...


10
Keiichi Sato, Susumu Kuwabata: Method of manufacturing a multi-layer semiconductor nanoparticle, and a multi-layer semiconductor nanoparticle manufactured by the method. Hitachi Software Engineering, Reed Smith, Stanley P Fisher Esq, Juan Carlos A Marquez Esq, June 28, 2005: US06911082 (16 worldwide citation)

Multi-layered semiconductor nanoparticles having a very narrow grain-size distribution and exhibiting a spectrum having a narrow wavelength-width peak are prepared by a manufacturing method combining a monodisperse semiconductor nanoparticle manufacturing method and a multi-layer semiconductor nanop ...



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