Patents Assigned to Toa Nenryo Kogyo, K.K.
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Patent number: 5259978Abstract: A traction fluid comprising:(i) a diesteric compound or its derivative represented by the formula ##STR1## wherein A' is an ester linkage of --COO-- or --OOC--, n is a number having a value of from 1 to 10, R.sub.1 is independently selected from hydrogen and alkyl groups containing from 1 to 8 carbons, and R.sub.2 is independently selected from hydrogen and alkyl group containing from 1 to 3 carbons; and(ii) from 0.1 to 95% by weight of a branched poly-.alpha.-olefin .Type: GrantFiled: February 1, 1993Date of Patent: November 9, 1993Assignee: Toa Nenryo Kogyo, K.K.Inventors: Narihiko Yoshimura, Yasuji Komatsu, Hirotaka Tomizawa
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Patent number: 5171481Abstract: A synthetic lubricating fluid comprising at least one ester or its derivative represented by the formula ##STR1## wherein: n is an integer of 0 to 5 and m is an integer of 0 to 5, with the proviso that the sum of n+m is 1 to 10 inclusive;R.sub.1 is independently selected from hydrogen and C.sub.1 to C.sub.8 alkyl groups, andR.sub.2 is independently selected from hydrogen and C.sub.1 to C.sub.3 alkyl groups.Type: GrantFiled: February 7, 1992Date of Patent: December 15, 1992Assignee: Toa Nenryo Kogyo K.K.Inventors: Narihiko Yoshimura, Hirotaka Tomizawa, Yasuji Komatsu
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Patent number: 5098894Abstract: The binderless zeolite of this invention is comprised more than 90% of crystalline aluminosilicate which is produced by crystalized a binder contained in extrudate obtained by molding a mixture of crystalline aluminosilicate and binder of silica-alumina. This binderless zeolite can improve it's catalytic activity without weaken the strength of the extrudate, since a so-called secondary pores also act as catalyst. Especially, when more than 50% of TSZ zeolite is contained, the catalytic ability of binderless zeolite is so excellent that it is preferably used as the catalyst for selective cracking of n-parafins of alkylation of aromatics using alkylation agents such as alcohols and olefins.Type: GrantFiled: September 26, 1990Date of Patent: March 24, 1992Assignee: Toa Nenryo Kogyo K.K.Inventors: Satoshi Sakurada, Nobuaki Tagaya, Tadashi Miura, Tsugio Maeshima, Takao Hashimoto
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Patent number: 5085792Abstract: A traction fluid comprising:(i) at least one diester or its derivative represented by the formula ##STR1## wherein A' is an ester linkage, n is an integer of 1 to 6, R.sub.1 is independently selected from hydrogen and alkyl groups containing from 1 to 8 carbon atoms, and R.sub.2 is independently selected from alkyl groups containing from 1 to 3 carbon atoms; and(ii) from 0.1 to 70 wt. % of at least one branched poly-alpha-olefin.Type: GrantFiled: January 27, 1989Date of Patent: February 4, 1992Assignee: Toa Nenryo Kogyo, K.K.Inventors: Yoshimura Narihiko, Hirotaka Tamizawa, Yasuji Komatsu
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Patent number: 5075024Abstract: A synthetic traction fluid comprising, as a base oil, at least one ester or its derivative selected from monoesters or their derivatives, and triesters or their derivatives represented by the formula ##STR1## wherein Y is independently selected from ##STR2## and --OH with A' being an ester linkage and R.sub.1 being independently selected from hydrogen and C.sub.1 to C.sub.8 alkyl groups, with the proviso that at least one Y is ##STR3## and R.sub.2 is independently selected from hydrogen and C.sub.1 to C.sub.3 alkyl groups.Type: GrantFiled: November 22, 1988Date of Patent: December 24, 1991Assignee: Toa Nenryo Kogyo, K.K.Inventors: Narihiko Yoshimura, Hirotaka Tomizawa, Yasuji Komatsu
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Patent number: 5039440Abstract: A traction fluid comprising at least one compound selected from diesters or monoesters represented by general formulas ##STR1## wherein: A is an ester linkage ##STR2## n.sub.1 and n.sub.2 are independently integers having a value of from 0 to 5 inclusive;R.sub.1 is hydrogen or a C.sub.1 -C.sub.8 alkyl; andR.sub.2 is a C.sub.1 to C.sub.3 alkyl group.Type: GrantFiled: March 31, 1988Date of Patent: August 13, 1991Assignee: Toa Nenryo Kogyo, K.K.Inventors: Narihiko Yoshimura, Hirotaka Tomizawa
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Patent number: 5037908Abstract: An improved process for polymerizing butene-1 in the presence of a polymerization catalyst composed of (a) a catalyst component containing titanium and halogen as essential constituents and (b) an organometallic compound, wherein the improvement comprises bringing said catalyst component into contact with an activity inhibitor when said catalyst component is activated or after said catalyst component has been activated with said organometallic compound, and subsequently polymerizing butene-1.Type: GrantFiled: December 19, 1985Date of Patent: August 6, 1991Assignee: Toa Nenryo Kogyo K.K.Inventors: Mamoru Tachikawa, Satoshi Ueki, Masato Sakuma, Makoto Miyazaki
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Patent number: 5037543Abstract: An assemblage of hydroxyl apatite particles having small and uniform particle size. The median of the particle size is 1 to 10 .mu.m, and at least 90% of the particles in the assemblage have a particle size of not more than 25 .mu.m. The assemblage can be used to pack a liquid chromatography column.Type: GrantFiled: July 9, 1990Date of Patent: August 6, 1991Assignee: Toa Nenryo Kogyo K.K.Inventors: Tsugio Maejima, Kimio Tamai, Tetsuo Kanakubo, Masao Yoshizawa, Nobuaki Tagaya, Hideyuki Kuwahara, Takao Hashimoto, Noriko Komatsu, Keiko Fukamachi
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Patent number: 5017308Abstract: A silicon thin film is composed of primarily silicon atoms, 0 to 8 atm % hydrogen, at least one element selected from the group including fluorine, chlorine, bromine and iodine, and an impurity element, wherein about 80 to 100% of microcrystalline grains are interspersed in an amorphous phase. The thin film is produced by deposition on a substrate in a plasma atmosphere using as a raw material gas silane (SiH.sub.4) or halogenated silane (SiH.sub.o--3 X.sub.4--1) wherein X represents a halogen or a combination of two or more halogens, and a dopant gas mixed with the raw material gas. The method comprises the steps of: (1) diluting the mixed gas with hydrogen in a ratio of the diluting gas to the raw material gas of from 50:1 to 100:1, to control the film deposition rate to produce a layer including mixed crystalline and amorphous substances; and (2) applying an electric power to provide a plasma discharge power density of from 0.1 to about 0.5 W/cm.sup.2, at a reaction pressure of 5 to 10 torr.Type: GrantFiled: July 11, 1989Date of Patent: May 21, 1991Assignee: Toa Nenryo Kogyo K.K.Inventors: Shigeru Iijima, Kazunobu Tanaka, Akihisa Matsuda, Mitsuo Matsumura, Hideo Yamamoto
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Patent number: 4978468Abstract: A traction fluid comprising:(i) an ester or its derivative represented by the formula: ##STR1## wherein A' is an ester linkage of --COO-- or --OOC--, n is an integer of from 1 to 14, R.sub.1 is selected from hydrogen and C.sub.1 to C.sub.8 alkyl radicals, and R.sub.2 is independently selected from hydrogen and C.sub.1 to C.sub.3 alkyl radicals; and(ii) from 0.1 to 95% by weight of a polymer selected from hydrocarbonic polymers and polyesters.Type: GrantFiled: January 19, 1989Date of Patent: December 18, 1990Assignee: Toa Nenryo Kogyo, K. K.Inventors: Narihiko Yoshimura, Hirotaka Tomizawa, Yasuji Komatsu
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Patent number: 4977120Abstract: The binderless zeolite of this invention is comprised more than 90% of crystalline aluminosilicate which is produced by crystalize a binder contained in extrudate obtained by molding a mixture of crystalline aluminosilicate and binder of silica-alumina. This binderless zeolite can improve it's catalytic activity without weaken the strength of the extrudate, since a so-called secondary pores also act as catalyst. Especially, when more than 50% of TSZ zeolite is contained, the catalytic ability of binderless zeolite is so excellent that it is preferably used as the catalyst for selective cracking of n-parafins or alkylation of aromatics using alkylation agents such as alcohols and olefins.Type: GrantFiled: April 13, 1988Date of Patent: December 11, 1990Assignee: Toa Nenryo Kogyo K.K.Inventors: Satoshi Sakurada, Nobuaki Tagaya, Tadashi Miura, Tsugio Maeshima, Takao Hashimoto
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Patent number: 4974780Abstract: An ultrasonic fuel injection nozzle comprises a generator for generating ultrasonic vibrations, a vibrator secured to the ultrasonic vibration generator and a valve for supplying fuel to the vibrator. The vibrator is secured to the ultrasonic vibration generator at one end and is formed with a cavity in its other end portion for atomizing fuel therein. The vibrator has a fuel passage communicating with the interior of the cavity. A valve is provided for normally closing the passage and for opening the passage to discharge an amount of fuel depending upon the passage opening duration. A fuel atomizing portion serves to reduce the discharged fuel to minute particles through the effect of ultrasonic vibrations.Type: GrantFiled: June 19, 1989Date of Patent: December 4, 1990Assignees: Toa Nenryo Kogyo K.K., Oval Engineering Co., Ltd.Inventors: Hiromi Nakamura, Kakuro Kokubo, Daijiro Hosogai, Yutaka Ogawa, Masuhiro Wada, Fumio Yokota
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Patent number: 4960743Abstract: A method for the production of a catalyst carrier for use in the polymerization of an olefin, which method comprises causing a magnesium-containing solid obtained by contact of (A) magnesium metal, (B) a halogenated hydrocarbon represented by the general formula, RX [wherein R stands for an alkyl, aryl, or cycloalkyl group having 1 to 20 carbon atoms and X stands for a halogen atom], and (C) a compound of the general formula, X.sub.n.sup.1 M(OR.sup.1).sub.m-n [wherein X.sup.1 stands for a hydrogen atom, a halogen atom, or a hydrocarbon group having 1 to 20 carbon atoms, M stands for a boron, carbon, aluminum, silicon, or phosphorus atom, R.sup.1 stands for a hydrocarbon group having 1 to 20 carbon atoms, and m stands for the valency of said atom M, providing that m>n.gtoreq.0 is satisfied], to contact (D) a halogen-containing alcohol.Type: GrantFiled: November 18, 1988Date of Patent: October 2, 1990Assignee: Toa Nenryo Kogyo K.K.Inventors: Masahide Murata, Masafumi Imai, Hiroyuki Furuhashi, Kouji Maruyama, Hiroshi Ueno
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Patent number: 4959427Abstract: A catalyst component for the polymerization of olefins which is prepared by contacting a reaction product of dihydrocarbyl magnesium and a halogen-containing alcohol held in contact with a titanium compound.Type: GrantFiled: May 12, 1986Date of Patent: September 25, 1990Assignee: Toa Nenryo Kogyo, K.K.Inventors: Hiroyuki Furuhashi, Tadashi Yamamoto, Masafumi Imai, Hiroshi Ueno
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Patent number: 4950630Abstract: A method for the production of a catalyst component for use in the polymerization of an olefin, which method comprises causing a magnesium-containing solid obtained by contact of (A) magnesium metal, (B) a halogenated hydrocarbon represented by the general formula, RX [wherein R stands for an alkyl, aryl, or cycloalkyl group having 1 to 20 carbon atoms and X stands for a halogen atom], and (C) a compound of the general formula, X.sub.n.sup.1 M(OR.sup.1).sub.m-n [wherein X.sup.1 stands for a hydrogen atom, a halogen atom, or a hydrocarbon group having 1 to 20 carbon atoms, M stands for a boron, carbon, aluminum, silicon, or phosphorus atom, R.sup.1 stands for a hydrocarbon group having 1 to 20 carbon atoms, and m stands for the valency of said atom M, providing that m>n.gtoreq.0 is satisfied], to contact (d) a halogen-containing alcohol and then contact (E) an electron donor type compound and (F) a titanium compound.Type: GrantFiled: November 18, 1988Date of Patent: August 21, 1990Assignee: Toa Nenryo Kogyo, K.K.Inventors: Masahide Murata, Masafumi Imai, Hiroyuki Furuhashi, Kouji Maruyama, Hiroshi Ueno
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Patent number: 4942148Abstract: A catalyst component for olefin polymerization, prepared by bringing a titanium-containing solid which comprises (a) a metal oxide, (b) an organomagnesium compound represented by the following general formula:R.sup.1 MgR.sup.2wherein R.sup.1 and R.sup.2 each represents a hydrocarbon group containing from 1 to 20 carbon atoms, a halogen atom, or an OR.sup.3 group in which R.sup.3 represents a hydrocarbon group containing from 1 to 12 carbon atoms, provided that R.sup.1 and R.sup.2 do not represent a halogen atom at the same time, (c) an electron donor compound, and (d) a titanium compound having contacted with each other, into contact with (e) an .alpha.-olefin containing 3 carbon atoms or more in the presence of (f) an organoaluminum compound, to thereby contain a poly(.alpha.-olefin) in an amount of from 0.1 to 100 g per gram of said titanium-containing solid.Type: GrantFiled: October 12, 1988Date of Patent: July 17, 1990Assignee: Toa Nenryo Kogyo, K.K.Inventors: Hiroyuki Furuhashi, Akira Nakano, Masahide Murata, Masafumi Imai, Hiroshi Ueno
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Patent number: 4926002Abstract: A catalyst for olefin polymerization which comprises: (A) a catalyst component obtained by reacting (a) pentadiene or a derivative thereof with (b) an alkali metal and subsequently reacting the reaction product with (c) a titanium compound or zirconium compound, and (B) aluminoxane.Type: GrantFiled: July 11, 1989Date of Patent: May 15, 1990Assignee: Toa Nenryo Kogyo K. K.Inventors: Tadanao Kohara, Satoshi Ueki
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Patent number: 4912170Abstract: This invention relates to a p-methyl styrene polymer represented by the following formula: ##STR1## Z denotes a group such as a functional group. Poly p-methylstyrene (PPMS) is lithiated by reaction with n-butyllithium. The lithiated PPMS is used to prepare polymers containing functional groups. As an example, a solution of PPMS (MW 260,000), 1.0 g in 20 ml of cyclohexane, was reacted with n-butyllithium, 8.5 mmol, and tetramethylethylenediamine, 8.7 mmol, for 20 hours to obtain a precipitate. The precipitate was dissolved in THF, and CO.sub.2 was blown into the solution. The solution was washed with an aqueous solution of HCl and dropped into methanol to obtain a solid polymer having carboxyl group functionality.Type: GrantFiled: December 22, 1988Date of Patent: March 27, 1990Assignee: Toa Nenryo Kogyo K.K.Inventors: Tadashi Niwa, Masayuki Kato, Yoshio Taguchi, Chihiro Imai, Tokuo Makishima, deceased, by Nobuko Makishima, legal representative
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Patent number: 4904257Abstract: A fibrous bone filler having an excellent biocompatibility. The bone filler comprises fibers containing hydroxyl apatite. The hydroxyl apatite is "intact", that is, the hydroxyl apatite substantially retains its hydroxyl groups.Type: GrantFiled: July 6, 1988Date of Patent: February 27, 1990Assignees: Toa Nenryo Kogyo K. K., Asahi Kogaku Kogyo Kabushiki KaishaInventors: Shoichi Mori, Shigeo Fujii, Masao Yoshizawa, Kenji Miyasaka, Jyoichi Tabuchi, Kazufumi Egawa, Minoru Hirano, Yoshikazu Yoshida
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Patent number: 4895712Abstract: A process for producing carbon fiber or graphite fiber is provided. The process comprises spinning a carbonaceous pitch, doubling spun pitch fiber bundles, adding a heat resistant doubling treatment oil, passing the fiber bundles continuously and linearly through an oxygen rich gas, infusibilizing at a temperature of 350.degree. C. or less, then carbonizing or graphitizing infusibilized fiber bundles.Type: GrantFiled: April 22, 1988Date of Patent: January 23, 1990Assignee: Toa Nenryo Kogyo K.K.Inventors: Kikuji Komine, Hisao Kato, Tsutomu Naito, Takashi Hino, Hiroyuki Kuroda