Patents by Inventor Kikuo Yamamoto
Kikuo Yamamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11097948Abstract: To provide an aluminum nitride particle having a hexagonal columnar barrel part and bowl-like projection parts at both ends of the columnar part, wherein the long diameter (D) of the barrel part is 10 to 250 ?m, the ratio (L1/D) of the distance (L1) between the apexes of the two projection pars to the long diameter (D) of the barrel part is 0.7 to 1.3, and the percentage of the length or thickness (L2) of the barrel part to the distance (L1) between the apexes of the two projection parts is 10 to 60%. The aluminum nitride particle can provide high heat conductivity and excellent electric insulation to a resin when it is filled into the resin.Type: GrantFiled: January 25, 2017Date of Patent: August 24, 2021Assignee: TOKUYAMA CORPORATIONInventors: Akimasa Kuramoto, Kikuo Yamamoto, Mou Ou, Saiko Fujii, Yukihiro Kanechika, Teruhiko Nawata
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Publication number: 20190031510Abstract: To provide an aluminum nitride particle having a hexagonal columnar barrel part and bowl-like projection parts at both ends of the columnar part, wherein the long diameter (D) of the barrel part is 10 to 250 ?m, the ratio (L1/D) of the distance (L1) between the apexes of the two projection pars to the long diameter (D) of the barrel part is 0.7 to 1.3, and the percentage of the length or thickness (L2) of the barrel part to the distance (L1) between the apexes of the two projection parts is 10 to 60%. The aluminum nitride particle can provide high heat conductivity and excellent electric insulation to a resin when it is filled into the resin.Type: ApplicationFiled: January 25, 2017Publication date: January 31, 2019Applicant: TOKUYAMA CORPORATIONInventors: Akimasa KURAMOTO, Kikuo YAMAMOTO, Mou OU, Saiko FUJII, Yukihiro KANECHIKA, Teruhiko NAWATA
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Patent number: 9989230Abstract: The present invention simplifies the system of power lines from the power source of a balloon-type illumination device to the inside of the balloon. The balloon-type illumination device (1) is provided with: a balloon (2); a discharge lamp (3) provided within the balloon (2); a blower (4) that is provided within the balloon (2) and inflates the balloon (2); a ballast (5) that performs stabilized power supply to the discharge lamp (3) and is provided outside the balloon (2); and a power source circuit (6) that is provided within the balloon (2) and is for sending, to the blower (4), a portion of the power to be supplied to the discharge lamp (3).Type: GrantFiled: January 28, 2014Date of Patent: June 5, 2018Assignee: LIGHT BOY CO., LTD.Inventor: Kikuo Yamamoto
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Publication number: 20160069552Abstract: The present invention simplifies the system of power lines from the power source of a balloon-type illumination device to the inside of the balloon. The balloon-type illumination device (1) is provided with: a balloon (2); a discharge lamp (3) provided within the balloon (2); a blower (4) that is provided within the balloon (2) and inflates the balloon (2); a ballast (5) that performs stabilized power supply to the discharge lamp (3) and is provided outside the balloon (2); and a power source circuit (6) that is provided within the balloon (2) and is for sending, to the blower (4), a portion of the power to be supplied to the discharge lamp (3).Type: ApplicationFiled: January 28, 2014Publication date: March 10, 2016Applicant: LIGHT BOY CO., LTD.Inventor: Kikuo YAMAMOTO
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Patent number: 8912371Abstract: A method of producing a chlorinated hydrocarbon having 3 carbon atoms, comprising a conversion step for converting a chloropropane represented by the following formula (1) into a chloropropane represented by the following formula (2) by reacting it with chlorine in the presence of anhydrous aluminum chloride. CCl3—CCl(2-m)Hm—CCl(3-n)Hn??(1) (In the above formula (1), m is 1 or 2, and n is an integer of 0 to 3.) CCl3—CCl(3-m)H(m-1)—CCl(3-n)Hn??(2) (In the above formula (2), m and n are the same integers as in the formula (1), respectively.Type: GrantFiled: December 1, 2011Date of Patent: December 16, 2014Assignee: Tokuyama CorporationInventors: Shunsuke Hosaka, Yasutaka Komatsu, Masayuki Moriwaki, Kikuo Yamamoto, Naoya Okada
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Patent number: 8877990Abstract: A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1). CCl3—CCl2-mHm—CCl3-nHn??(1) CCl2?CCl2-mHm-1—CCl3-nHn??(2) (in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.Type: GrantFiled: June 17, 2010Date of Patent: November 4, 2014Assignee: Tokuyama CorporationInventors: Tadahiro Fukuju, Kikuo Yamamoto, Masayuki Moriwaki, Yasutaka Komatsu, Akihiro Saito, Shunsuke Hosaka, Dai Tsunoda, Jun Kawakami
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Publication number: 20130165705Abstract: A method of producing a chlorinated hydrocarbon having 3 carbon atoms, comprising a conversion step for converting a chloropropane represented by the following formula (1) into a chloropropane represented by the following formula (2) by reacting it with chlorine in the presence of anhydrous aluminum chloride. CCl3—CCl(2-m)Hm—CCl(3-n)Hn??(1) (In the above formula (1), m is 1 or 2, and n is an integer of 0 to 3.) CCl3—CCl(3-m)H(m-1)—CCl(3-n)Hn??(2) (In the above formula (2), m and n are the same integers as in the formula (1), respectively.Type: ApplicationFiled: December 1, 2011Publication date: June 27, 2013Applicant: TOKUYAMA CORPORATIONInventors: Shunsuke Hosaka, Yasutaka Komatsu, Masayuki Moriwaki, Kikuo Yamamoto, Naoya Okada
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Patent number: 8304589Abstract: A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1). CCl3—CCl2-mHm—CCl3-nHn??(1) CCl2?CCl2-mHm-1—CCl3-nHn??(2) (in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.).Type: GrantFiled: February 27, 2012Date of Patent: November 6, 2012Assignee: Tokuyama CorporationInventors: Tadahiro Fukuju, Kikuo Yamamoto, Masayuki Moriwaki, Yasutaka Komatsu, Akihiro Saito, Shunsuke Hosaka, Dai Tsunoda, Jun Kawakami
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Publication number: 20120157723Abstract: A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1). CCl3—CCl2-mHm—CCl3-nHn??(1) CCl2?CCl2-mHm-1—CCl3-nHn??(2) (in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.Type: ApplicationFiled: February 27, 2012Publication date: June 21, 2012Inventors: Tadahiro FUKUJU, Kikuo YAMAMOTO, Masayuki MORIWAKI, Yasutaka KOMATSU, Akihiro SAITO, Shunsuke HOSAKA, Dai TSUNODA, Jun KAWAKAMI
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Publication number: 20120053374Abstract: A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1). CCl3—CCl2-mHm—CCl3-nHn??(1) CCl2?CCl2-mHm-1—CCl3-nHn??(2) (in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.Type: ApplicationFiled: June 17, 2010Publication date: March 1, 2012Inventors: Tadahiro Fukuju, Kikuo Yamamoto, Masayuki Moriwaki, Yasutaka Komatsu, Akihiro Saito, Shunsuke Hosaka, Dai Tsunoda, Jun Kawakami
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Publication number: 20100246187Abstract: A floodlight including an electronic ballast which makes the floodlight easier to handle. A floodlight 1 comprises: a base 5; a telescopic mast 4 having a proximal end connected with said base 5; a lighting device 2 provided at a distal end of said mast 4; and an electronic ballast 3 that stabilizes electric power and feeds the stabilized electric power to said lighting device 2. The lighting device 2 includes a lamp 21 and a holding assembly 20 that holds said lamp 21, while the electronic ballast 3 is installed in said holding assembly 20.Type: ApplicationFiled: November 20, 2007Publication date: September 30, 2010Applicant: Lightboy co. ltdInventors: Norihito Yoshimori, Masayuki Taguchi, Atsushi Oonishi, Kikuo Yamamoto
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Publication number: 20060263069Abstract: One macroblock is constructed by 16×16 pixels (bytes). When the macroblocks are stored in a frame memory constructed by a DRAM or the like, addresses are sequentially allocated in an ascending order in a manner such that addresses 0000 to 0255 are allocated to the first macroblock and addresses 0256 to 0512 are allocated to the second macroblock and the macroblocks are stored. The macroblocks stored in this manner are read out in the ascending order of the addresses.Type: ApplicationFiled: July 27, 2006Publication date: November 23, 2006Applicant: Sony CorporationInventors: Ikuo Tsukagoshi, Naohiko Kawase, Kikuo Yamamoto
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Patent number: 7110663Abstract: One macroblock is constructed by 16×16 pixels (bytes). When the macroblocks are stored in a frame memory constructed by a DRAM or the like, addresses are sequentially allocated in an ascending order in a manner such that addresses 0000 to 0255 are allocated to the first macroblock and addresses 0256 to 0512 are allocated to the second macroblock and the macroblocks are stored. The macroblocks stored in this manner are read out in the ascending order of the addresses.Type: GrantFiled: April 13, 2000Date of Patent: September 19, 2006Assignee: Sony CorporationInventors: Ikuo Tsukagoshi, Naohiko Kawase, Kikuo Yamamoto
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Patent number: 6894125Abstract: A scale adhesion preventing agent for use in a polymerization reactor, consisting essentially of a condensate of a phenol represented by the following formula (1), a 1-naphthol and an aldehyde, which is soluble in an alkaline aqueous solution: wherein R1 and R2 are the same or different and each a hydroxyl group, alkyl group having 1 to 8 carbon atoms, halogen atom, hydrogen atom, alkoxycarbonyl group whose alkyl moiety has 1 to 8 carbon atoms or phenyl group, with the proviso that a hydrogen atom is existent at at least two of ortho-positions and para-positions with respect to the hydroxyl group. When a vinyl-based monomer is to be polymerized using a polymerization reactor having a film of this scale adhesion preventing agent on the inner wall, the vinyl-based polymer can be produced by preventing the adhesion of a scale.Type: GrantFiled: December 12, 2001Date of Patent: May 17, 2005Assignee: Tokuyama CorporationInventors: Kunio Kamata, Kazuhiko Kanawa, Kikuo Yamamoto
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Publication number: 20040077804Abstract: A scale adhesion preventing agent for use in a polymerization reactor, consisting essentially of a condensate of a phenol represented by the following formula (1), a 1-naphthol and an aldehyde, which is soluble in an alkaline aqueous solution: 1Type: ApplicationFiled: August 12, 2003Publication date: April 22, 2004Inventors: Kunio Kamata, Kazuhiko Kanawa, Kikuo Yamamoto
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Patent number: 6174573Abstract: A novel tolan compound of the formula (I): wherein A is C1-10 alkyl, C1-10 alkoxy, cyclohexyl substituted by C1-10 alkyl at 4 position, cyclohexyl substituted by C1-10 alkoxy group at 4 position or a group of the formula: wherein Y is hydrogen or halogen and Z is C1-10 alkyl or halogen; B is a single bond or —CO—O— or —O—CO—; D is hydrogen, C1-10 alkyl, cyclohexyl substituted by C1-10 alkyl at 4 position; and Z represents a hydrogen atom or a halogen atom. The tolan compound can increase the N-I point, decrease the viscosity, and increase the double refractive index of a liquid crystal composition without affecting the viscosity and threshold voltage Vth, and is mutually soluble with various other liquid crystal compounds, so that the compound can be used as a constituent of a liquid crystal composition in combination with these other liquid crystal materials to improve the properties of the composition.Type: GrantFiled: May 19, 1999Date of Patent: January 16, 2001Assignee: Citizen Watch Co., Ltd.Inventors: Tomijiro Naito, Kikuo Yamamoto, Katsuji Niino, Yumiko Sakamaki
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Patent number: 5972244Abstract: A novel tolan compound of the formula (I): ##STR1## wherein A is C.sub.1-10 alkyl, C.sub.1-10 alkoxy, cyclohexyl substituted by C.sub.1-10 alkyl at 4 position, cyclohexyl substituted by C.sub.1-10 alkoxy group at 4 position or a group of the formula: ##STR2## wherein Y is hydrogen or halogen and Z is C.sub.1-10 alkyl or halogen; B is a single bond or --CO--O-- or --O--CO--; D is hydrogen, C.sub.1-10 alkyl, cyclohexyl substituted by C.sub.1-10 alkyl at 4 position; and Z represents a hydrogen atom or a halogen atom. The tolan compound can increase the N-I point, decrease the viscosity, and increase the double refractive index of a liquid crystal composition without affecting the viscosity and threshold voltage Vth, and is mutually soluble with various other liquid crystal compounds, so that the compound can be used as a constituent of a liquid crystal composition in combination with these other liquid crystal materials to improve the properties of the composition.Type: GrantFiled: January 13, 1998Date of Patent: October 26, 1999Assignee: Citizen Watch Co., Ltd.Inventors: Tomijiro Naito, Kikuo Yamamoto, Katsuji Niino, Yumiko Sakamaki
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Patent number: 5656198Abstract: A novel tolan compound of the formula (I): ##STR1## wherein A is a substituted or unsubstituted cyclohexyl or phenyl group; B is --CO--O-- or --O--CO--; X is a hydrogen atom, a halogen atom, a cyano group, a C.sub.1 -C.sub.10 alkyl group, or a C.sub.1 -C.sub.10 alkoxy group; Y is a hydrogen atom or a halogen atom; and m and n are an integer of 0 or 1, provided that m+n=0 or 1. The tolan compound can raise the N-I point and increase the double refractive index (.DELTA.n) of liquid crystal compositions. The liquid crystal composition containing this tolan compound has excellent characteristics as a liquid crystal material, and the liquid crystal display device using this liquid crystal composition has a wide temperature range and a wide visible angle and can be operated at a low driving voltage.Type: GrantFiled: April 4, 1996Date of Patent: August 12, 1997Assignee: Citizen Watch Co., Ltd.Inventors: Tomijiro Naito, Yumiko Sakamaki, Katsuji Niino, Kikuo Yamamoto
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Patent number: 5138502Abstract: A tape counter for counting an amount of tape by which a tape has run for a video signal recording and reproducing apparatus and method therefor, in which the number of frames on tape tracks over which each rotary head scans are counted according to a change in level of an envelope of a reproduced FM signal detected through each rotary head, the number of rotations of a rotary drum on which the rotary head is mounted is counted, and the amount of tape by which the tape has run is counted on the basis of the number of frames scanned by the rotary head and the number of rotations of the drum. The tape counter detects the amount of tape by which the tape has run in all running modes during a reproduction operation with a high accuracy and displays the amount of tape by which the tape has run in a series of units of hours, minutes, and seconds.Type: GrantFiled: November 29, 1990Date of Patent: August 11, 1992Assignee: Sony CorporationInventors: Tamon Ikeda, Yosuke Otsu, Kikuo Yamamoto
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Patent number: 5083228Abstract: An information signal comprised of a video component and a tracking information component which has been recorded in parallel oblique tracks on a record medium is reproduced by plural transducers which scan successive tracks. The tracking information component is separated from the reproduced information signal to derive error detection signals representing scanning errors of the transducers. Plural ones of the error detection signals are averaged to produce tracking control signals.Type: GrantFiled: August 21, 1989Date of Patent: January 21, 1992Assignee: Sony CorporationInventors: Kazuhiro Uchida, Kikuo Yamamoto