Patents by Inventor Eriko Suzuki
Eriko Suzuki 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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Publication number: 20120167628Abstract: The present invention provides a method of manufacturing a vitreous silica crucible by heating and fusing a silica powder layer in a rotating mold by arc discharge generated by carbon electrodes comprising: a preparation process for determining optimal temperatures during heating and fusing the silica powder layer for one or more selected from the group consisting of the silica powder layer, fume generated during arc fusing, and arc flame generated in the arc discharge; a temperature measuring process for measuring actual temperatures during heating and fusing for one or more selected from the group where the optimal temperatures are determined; and a temperature controlling process for controlling the actual temperatures for one or more selected from the group where the actual temperatures are measured so that the actual temperatures match the optimal temperatures.Type: ApplicationFiled: December 27, 2011Publication date: July 5, 2012Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki SUDO, Eriko SUZUKI
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Publication number: 20120167627Abstract: There is provided a method of manufacturing a vitreous silica crucible having a suitably controlled inner surface property. The present invention provides a method of manufacturing a vitreous silica crucible by heating and fusing a silica powder layer in a rotating mold by arc discharge generated by carbon electrodes including: a preparation process for determining optimal fusing temperatures during heating and fusing the silica powder layer at plural points of different heights of the silica powder layer; a temperature measuring process for measuring actual temperatures during heating and fusing the silica powder layer at the plural points; a temperature controlling process for controlling the actual temperatures at the plural points so that the actual temperatures matches the optimal fusing temperatures at the respective points.Type: ApplicationFiled: December 27, 2011Publication date: July 5, 2012Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki SUDO, Eriko SUZUKI
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Publication number: 20120167624Abstract: The present invention provides a method of manufacturing a vitreous silica crucible including: a silica powder supplying process of supplying a material silica powder into a mold for molding a crucible, to form a silica powder layer, and an arc fusing process of arc fusing the silica powder layer by arc discharge generated by carbon electrodes, wherein the arc fusing process includes processes of measuring a temperature of the silica powder layer, and controlling a vitreous silica fused state based on a reference temperature which is a temperature at a local maximum point which appears first in the arc fusing process.Type: ApplicationFiled: December 27, 2011Publication date: July 5, 2012Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki SUDO, Eriko SUZUKI
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Publication number: 20120167625Abstract: The present invention provides a method of manufacturing a vitreous silica crucible including: a silica powder supplying process of supplying a material silica powder into a mold for molding a vitreous silica crucible, to form a silica powder layer, and an arc fusing process of arc fusing the silica powder layer by arc discharge generated by carbon electrodes, wherein the arc fusing process includes processes of measuring temperatures at measuring points provided on different heights of an inner surface of the silica powder layer while rotating the mold, and controlling the arc discharge to enable detection, at each measuring point, of a local maximum point which appears first in the arc fusing process.Type: ApplicationFiled: December 27, 2011Publication date: July 5, 2012Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki SUDO, Eriko SUZUKI
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Publication number: 20120131954Abstract: There are provided an apparatus and a method for manufacturing a vitreous silica crucible which can prevent the deterioration of the inner surface property in the manufacturing process of a vitreous silica crucible. The apparatus includes a mold defining an outer shape of a vitreous silica crucible, and an arc discharge unit having electrodes and a power-supply unit, wherein each of the electrodes includes a tip end directed to the mold, the other end opposite to the tip end, and a bent portion provided between the tip end and the other end.Type: ApplicationFiled: August 9, 2010Publication date: May 31, 2012Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki Sudo, Eriko Suzuki, Hiroshi Kishi, Takeshi Fujita
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Publication number: 20120132133Abstract: The present invention provides a vitreous silica crucible which can suppress buckling and sidewall lowering of the crucible without fear of mixing of impurities into silicon melt. According to the present invention, provided is a vitreous silica crucible for pulling a silicon single crystal, wherein a ratio I2/I1 is 0.67 to 1.17, where I1 and I2 are area intensities of the peaks at 492 cm?1 and 606 cm?1, respectively, in Raman spectrum of vitreous silica of the region having a thickness of 2 mm from an outer surface to an inner surface of a wall of the crucible.Type: ApplicationFiled: November 30, 2011Publication date: May 31, 2012Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki SUDO, Hiroshi KISHI, Eriko SUZUKI
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Publication number: 20110315072Abstract: Provided is a vitreous silica crucible which can suppress inward sagging and buckling of the sidewall effectively even when time for pulling silicon ingots is extremely long. According to the present invention, provided is a vitreous silica crucible for pulling a silicon single crystal, wherein the crucible has a wall comprising, from an inner surface toward an outer surface of the crucible, a transparent vitreous silica layer having a bubble content rate of less than 0.5%, a bubble-containing vitreous silica layer having a bubble content rate of 1% or more and less than 50%, a semi-transparent vitreous silica layer having a bubble content rate of 0.5% or more and less than 1.0% and having an OH group concentration of 35 ppm or more and less than 300 ppm.Type: ApplicationFiled: June 22, 2011Publication date: December 29, 2011Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki SUDO, Hiroshi KISHI, Eriko SUZUKI
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Publication number: 20110295405Abstract: Provided is a method of calculating a temperature distribution with higher accuracy than a conventional method, which calculates a temperature distribution of an inner surface of a silica powder molded body during manufacturing based on boundary conditions corrected in accordance with the actually measured temperature in consideration of plasma radiation by arc discharge and heat radiation of arc discharge.Type: ApplicationFiled: December 14, 2010Publication date: December 1, 2011Applicants: SHIBAURA INSTITUTE OF TECHNOLOGY, JAPAN SUPER QUARTZ CORPORATIONInventors: Toshiaki Sudo, Eriko Suzuki, Naoki Ono
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Publication number: 20110079047Abstract: Provided are an apparatus and a method for manufacturing a vitreous silica crucible, which enable accurate measurement of a fume generation amount, prevention of deterioration of an inner surface property, and real-time control of a raw material melting state. Provided is an apparatus for manufacturing a vitreous silica crucible 50 by supplying silica powder into a mold 10 to form a silica powder layer 11, and heating and melting the silica powder layer 11 by arc discharge. The apparatus includes the mold 10 for defining an outer shape of a vitreous silica crucible, an arc discharge unit having a plurality of carbon electrodes 13 and a power-supply unit 40, and a fume-amount measurement unit 30 for detecting an amount of fumes 80 generated in the mold 10.Type: ApplicationFiled: September 29, 2010Publication date: April 7, 2011Applicant: JAPAN SUPER QUARTZ CORPORATIONInventors: Eriko SUZUKI, Hiroshi KISHI
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Patent number: 7629118Abstract: A method of testing the presence/absence of wheat in a food by performing PCR with the use of primers which have been designed on the basis of data obtained from a part of a gene of wheat. This method is highly useful in detecting a trace component contained in a food or identifying a harmful allergen of wheat.Type: GrantFiled: September 26, 2002Date of Patent: December 8, 2009Assignee: Nisshin Seifun Group Inc.Inventors: Hirohito Yamakawa, Eriko Suzuki, Kiyoko Miyatake, Katsuyuki Hayakawa
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Patent number: 7344866Abstract: A method for detecting the presence/absence of a specific substance in foods by performing PCR using primers which are designed on the basis of data obtained from a part of a gene of the specific substance. This method is highly useful in detecting a trace component contained in a food or identifying a specific harmful allergen.Type: GrantFiled: September 26, 2002Date of Patent: March 18, 2008Assignee: Nisshin Seifun Group Inc.Inventors: Hirohito Yamakawa, Eriko Suzuki, Kiyoko Miyatake, Katsuyuki Hayakawa
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Publication number: 20070142465Abstract: A compound represented by the following general formula (1): wherein R1 represents a hydrogen atom or a C2 to C4 alkanoyl group and R2 represents a group represented by the following formula (A), (B), (C), (D), (E), (F), or (G): wherein R3 represents a C1 to C4 alkyl group can inhibit macrophage activation. Accordingly, a macrophage activation inhibitor containing a compound represented by the general formula (1) or its pharmacologically acceptable salt as an active ingredient is useful as an agent for preventing, improving, or treating a disease resulting from infection with pathogens such as a bacterium and a virus.Type: ApplicationFiled: August 5, 2004Publication date: June 21, 2007Inventors: Kazuo Umezawa, Eriko Suzuki
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Publication number: 20060228549Abstract: An object of the present invention is to provide a novel polymer coated metal oxide. A polymer coated metal oxide according to the present invention is characterized in that a polymer has a siloxane skeletal structure. A polymer coated metal oxide manufacturing method according to the present invention is a method of contacting a metal oxide with a solution of a polymer having a siloxane skeletal structure. As a result, a polymer can be bonded to the surface of a metal oxide. Herein, it is preferable that a polymer should have a branching structure. Also, it is preferable that the polymer having the branching structure should be a dendritic polymer. Further, it is preferable that a metal oxide should be glass, silica gel, titanium oxide, barium titanate, indium tin oxide (ITO), aluminum oxide, nickel oxide, iron oxide and the like.Type: ApplicationFiled: February 18, 2004Publication date: October 12, 2006Inventors: Masaaki Kakimoto, Mitsutoshi Jikei, Eriko Suzuki
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Publication number: 20060057572Abstract: A method for detecting the presence/absence of a specific substance in foods by performing PCR using primers which are designed on the basis of data obtained from a part of a gene of the specific substance. This method is highly useful in detecting a trace component contained in a food or identifying a specific harmful allergen.Type: ApplicationFiled: September 26, 2002Publication date: March 16, 2006Applicant: Nisshin SeifunGroup Inc.Inventors: Hirohito Yamakawa, Eriko Suzuki, Kiyoko Miyatake, Katsuyuki Hayakawa
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Publication number: 20050272033Abstract: A method of testing the presence/absence of wheat in a food by performing PCR with the use of primers which have been designed on the basis of data obtained from a part of a gene of wheat. This method is highly useful in detecting a trace component contained in a food or identifying a harmful allergen of wheat.Type: ApplicationFiled: September 26, 2002Publication date: December 8, 2005Applicant: Nisshin Seifun Group IncInventors: Hirohito Yamakawa, Eriko Suzuki, Kiyoko Miyatake, Katsuyuki Hayakawa
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Patent number: 6648954Abstract: A water-based pigment dispersion comprising 100 parts by weight of a pigment, 3 to 30 parts by weight of a sulfonic acid group-containing pigment derivative and water, wherein the sulfonic acid group-containing pigment derivative has only one sulfonic acid group in a molecule of a pigment of which the type is the same as the type of the pigment to be dispersed, the sulfonic acid group forms at least one salt selected from the group consisting of ammonia salt, an organic amine salt and a salt in which at least 15% of the sulfonic acid group is liberated and the rest is a salt with monovalent metal, the content of metal ion having a valence of at least 2 in a solid matter of the above water-based pigment dispersion is 500 ppm or less, and the above pigment is dispersed in water according to electrostatic repulsion due to the sulfonic acid group-containing pigment derivative adsorbed on the particle surface of the pigment, an inkjet recording liquid containing the same and process for the production thereof.Type: GrantFiled: March 5, 2001Date of Patent: November 18, 2003Assignee: Toyo Ink Mfg. Co., Ltd.Inventors: Toshiyuki Uemura, Jun Kaneda, Eriko Suzuki, Takashi Negishi, Seiji Aida
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Publication number: 20010029870Abstract: A water-based pigment dispersion comprising 100 parts by weight of a pigment, 3 to 30 parts by weight of a sulfonic acid group-containing pigment derivative and water, wherein the sulfonic acid group-containing pigment derivative has only one sulfonic acid group in a molecule of a pigment of which the type is the same as the type of the pigment to be dispersed, the sulfonic acid group forms at least one salt selected from the group consisting of ammonia salt, an organic amine salt and a salt in which at least 15% of the sulfonic acid group is liberated and the rest is a salt with monovalent metal, the content of metal ion having a valence of at least 2 in a solid matter of the above water-based pigment dispersion is 500 ppm or less, and the above pigment is dispersed in water according to electrostatic repulsion due to the sulfonic acid group-containing pigment derivative adsorbed on the particle surface of the pigment, an inkjet recording liquid containing the same and process for the production thereof.Type: ApplicationFiled: March 5, 2001Publication date: October 18, 2001Inventors: Toshiyuki Uemura, Jun Kaneda, Eriko Suzuki, Takashi Negishi, Seiji Aida
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Patent number: 6145128Abstract: A finger protector apparatus includes a thumb-receiver cup portion, a flexible hinge portion connected to the thumb-receiver cup portion, and a two-finger-receiver cup portion is connected to the flexible hinge portion. A longitudinal axis extends through the thumb-receiver cup portion, the flexible hinge portion, and the two-finger-receiver cup portion. In addition, the thumb-receiver cup portion, the flexible hinge portion, and the two-finger-receiver cup portion are disposed in a plane symmetrically around the longitudinal axis. The two-finger-receiver cup portion includes interior space for receiving two fingers, one finger in a receiving space on one side of the longitudinal axis and the second finger in a receiving space on the other side of the longitudinal axis. The thumb-receiver cup portion includes an interior space for receiving a thumb along the longitudinal axis.Type: GrantFiled: September 2, 1999Date of Patent: November 14, 2000Inventor: Eriko Suzuki
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Patent number: 5900363Abstract: An effective process for producing .epsilon.-poly-L-lysine is provided, which process comprises cultivating a microorganism having .epsilon.-poly-L-lysine productivity, such as a bacterium belonging to the Streptomyces genus, in the form of immobilized bacterial cells under aerobic conditions, and according to which process, the bacterial cells cause no bacteriolysis; the immobilized bacterial cells retaining .epsilon.-poly-L-lysine productivity can be easily separated and recovered from the culture solution containing .epsilon.-poly-L-lysine; and semi-continuous or continuous production of .epsilon.-poly-L-lysine by the use of the immobilized bacterial cells is possible.Type: GrantFiled: June 4, 1996Date of Patent: May 4, 1999Assignee: Chisso CorporationInventors: Jun Hiraki, Eriko Suzuki
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Patent number: 5087446Abstract: The invention provides cosmetics using a freeze-dried material which is obtained by freeze-drying an aqueous solution. The solution contains hyaluronic acid or sodium hyaluronate and magnesium-L-ascrbil phosphate.Type: GrantFiled: January 30, 1990Date of Patent: February 11, 1992Assignee: Chisso CorporationInventors: Eriko Suzuki, Jun Hiraki, Masahiro Fujii