Patents by Inventor Takahisa Iizuka
Takahisa Iizuka 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: 20230295676Abstract: An object of the present invention is to provide an enzyme preparation that efficiently catalyzes the epimerization reaction with little byproducts. The present invention provides an enzyme preparation for catalyzing an epimerization reaction of a saccharide, which contains any of the proteins (a) to (c) mentioned below, and wherein the saccharide is any selected from the group consisting of glucose, mannose, talose and galactose: (a) a protein consisting of the amino acid sequence of SEQ ID NO: 1 or 3; (b) a protein consisting of an amino acid sequence having an amino acid sequence identity of 90% or higher to the amino acid sequence of SEQ ID NO: 1 or 3, and having an activity for catalyzing an epimerization reaction of a saccharide; and (c) a protein consisting of an amino acid sequence derived from the amino acid sequence of SEQ ID NO: 1 or 3 by substitution, insertion, deletion and/or addition of one or several amino acids, and having an activity for catalyzing an epimerization reaction of a saccharide.Type: ApplicationFiled: July 27, 2021Publication date: September 21, 2023Applicant: NIHON SHOKUHIN KAKO CO., LTD.Inventors: Mioka KANAI, Takahisa IIZUKA, Kenta KANAI
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Patent number: 11505789Abstract: The present invention relates to an enzyme having ?-1,6-glucosyl transfer activity, which can use a partially degraded starch product as a substrate and is heat resistant and suitable for industrial applications; an enzyme preparation for use in manufacturing ?-1,6-glucan, comprising the enzyme as an active ingredient; and a method for manufacturing ?-1,6-glucan using the enzyme or enzyme preparation. The present invention provides an enzyme having ?-1,6-glucosyl transfer activity, which is any one of proteins (a), (b), and (c): (a) a protein consisting of an amino acid sequence of SEQ ID NO: 3; (b) a protein consisting of an amino acid sequence having at least 90% amino acid sequence identity to the amino acid sequence of SEQ ID NO: 3; and (c) a protein consisting of an amino acid sequence in which one or several amino acid(s) have been substituted, inserted, deleted and/or added in the amino acid sequence of SEQ ID NO: 3.Type: GrantFiled: February 19, 2019Date of Patent: November 22, 2022Inventors: Haruhide Mori, Wataru Saburi, Kenta Kanai, Kenta Aizawa, Takahisa Iizuka, Noriaki Takechi, Mioka Tani
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Publication number: 20220275413Abstract: An object of the present invention is to provide a protein that catalyzes an ?-1,6-glucosyl transfer reaction and can efficiently produce an ?-1,6-glucan, an enzyme preparation for producing an ?-1,6-glucan, which comprise said protein as an active ingredient, and a method for producing an ?-1,6-glucan using the enzyme preparation. The present invention provides a protein having an activity for catalyzing an ?-1,6-glucosyl transfer reaction, which is any of the proteins (a) to (c) mentioned below: (a) a protein consisting of the amino acid sequence of SEQ ID NO: 3; (b) a protein consisting of an amino acid sequence having an amino acid sequence identity of 90% or higher to the amino acid sequence of SEQ ID NO: 3; and (c) a protein consisting of an amino acid sequence in which one or several amino acid(s) have been substituted, inserted, deleted and/or added in the amino acid sequence of SEQ ID NO: 3.Type: ApplicationFiled: June 8, 2020Publication date: September 1, 2022Applicant: NIHON SHOKUHIN KAKO CO., LTD.Inventors: Kenta KANAI, Kenta AIZAWA, Mioka KANAI, Noriaki TAKECHI, Takahisa IIZUKA
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Publication number: 20210009977Abstract: The present invention relates to an enzyme having ?-1,6-glucosyl transfer activity, which can use a partially degraded starch product as a substrate and is heat resistant and suitable for industrial applications; an enzyme preparation for use in manufacturing ?-1,6-glucan, comprising the enzyme as an active ingredient; and a method for manufacturing ?-1,6-glucan using the enzyme or enzyme preparation. The present invention provides an enzyme having ?-1,6-glucosyl transfer activity, which is any one of proteins (a), (b), and (c): (a) a protein consisting of an amino acid sequence of SEQ ID NO: 3; (b) a protein consisting of an amino acid sequence having at least 90% amino acid sequence identity to the amino acid sequence of SEQ ID NO: 3; and (c) a protein consisting of an amino acid sequence in which one or several amino acid(s) have been substituted, inserted, deleted and/or added in the amino acid sequence of SEQ ID NO: 3.Type: ApplicationFiled: February 19, 2019Publication date: January 14, 2021Inventors: Haruhide Mori, Wataru Saburi, Kenta Kanai, Kenta Aizawa, Takahisa Iizuka, Noriaki Takechi, Mioka Tani
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Patent number: 10702545Abstract: An object of the present invention is to provide a carbohydrate-derived energy supplying agent having slow digestibility and sustained digestibility functions. According to the present invention, there is provided a slowly digestible, sustained-type energy supplying agent comprising a saccharide composition which satisfies the following (A), (B), (C), and (D): (A) a percentage of ?-1,6 bonds relative to all glycosidic bonds is 60% or more; (B) a content of saccharides having a degree of polymerization of 1 and 2 relative to all saccharides is 9 mass % or less; (C) a content of saccharides having a degree of polymerization within a range of 3 to 30 relative to all saccharides is 41 mass % or more; and (D) a content of saccharides having a degree of polymerization of 31 or more relative to all saccharides is 50 mass % or less.Type: GrantFiled: September 18, 2015Date of Patent: July 7, 2020Assignees: NIHON SHOKUHIN CO., LTD., MORINAGA MILK INDUSTRY CO., LTD.Inventors: Kenta Aizawa, Kazuki Sekikya, Takahisa Iizuka, Hiroki Takagi, Masayasu Takada, Koichi Ogawa, Hirofumi Sonoki, Akayo Ito, Eri Kokubo
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Publication number: 20170304353Abstract: An object of the present invention is to provide a carbohydrate-derived energy supplying agent having slow digestibility and sustained digestibility functions. According to the present invention, there is provided a slowly digestible, sustained-type energy supplying agent comprising a saccharide composition which satisfies the following (A), (B), (C), and (D): (A) a percentage of ?-1,6 bonds relative to all glycosidic bonds is 60% or more; (B) a content of saccharides having a degree of polymerization of 1 and 2 relative to all saccharides is 9 mass % or less; (C) a content of saccharides having a degree of polymerization within a range of 3 to 30 relative to all saccharides is 41 mass % or more; and (D) a content of saccharides having a degree of polymerization of 31 or more relative to all saccharides is 50 mass % or less.Type: ApplicationFiled: September 18, 2015Publication date: October 26, 2017Inventors: Kenta Aizawa, Kazuki Sekikya, Takahisa Iizuka, Hiroki Takagi, Masayasu Takada, Koichi Ogawa, Hirofumi Sonoki, Akayo Ito, Eri Kokubo
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Patent number: 7745758Abstract: To provide an arc start method in a consumable electrode type arc welding method capable of firmly executing arc start and capable of executing high quality high speed welding by restraining a welding defect from being brought about therefor, at a portion of a wire projected from a welding tip, a temperature of a front end portion of the wire is made to be at a temperature higher than a temperature of a portion thereof near the welding tip. The front end portion of the wire is preheated to 300° C. or higher, preferably, 450° C. or higher. The front end portion of the wire is preheated by generating arc for preheating. The preheating arc is generated in a spot-like shape at a position near a terminal end portion of a predetermined welding line by constituting a current lower than a welding current.Type: GrantFiled: March 8, 2006Date of Patent: June 29, 2010Assignees: Central Motor Wheel Co., Ltd., Kawasaki Jukogyo Kabushiki KaishaInventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Masaru Seto, Takahisa Iizuka, Kazuhiko Onoue, Kunio Uchikoshi
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Publication number: 20060213889Abstract: To provide an arc start method in a consumable electrode type arc welding method capable of firmly executing arc start and capable of executing high quality high speed welding by restraining a welding defect from being brought about therefor, at a portion of a wire projected from a welding tip, a temperature of a front end portion of the wire is made to be at a temperature higher than a temperature of a portion thereof near the welding tip. The front end portion of the wire is preheated to 300° C. or higher, preferably, 450° C. or higher. The front end portion of the wire is preheated by generating arc for preheating. The preheating arc is generated in a spot-like shape at a position near a terminal end portion of a predetermined welding line by constituting a current lower than a welding current.Type: ApplicationFiled: March 8, 2006Publication date: September 28, 2006Applicants: CENTRAL MOTOR WHEEL CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Masaru Seto, Takahisa Iizuka, Kazuhiko Onoue, Kunio Uchikoshi
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Publication number: 20060213888Abstract: There is provided a welding method and a welding equipment, in each of which it is possible to detect a weld abnormality, moreover it is possible to detect a generation position and a length of that abnormality, and further it is possible to perform a repair of a weld abnormality part. After a weld start signal has been inputted, a case where a welding current and a welding voltage, which have been detected by a welding current/voltage detection means, are outside set ranges is made the weld abnormality by an abnormality discrimination means. An abnormality generation time instant and an abnormality termination time instant are calculated with a start signal input timing being made a time axis reference by a time instant calculation means. An abnormality generation position and an abnormality terminus position are operated from data of the time instants and a robot position information by an operation means.Type: ApplicationFiled: March 8, 2006Publication date: September 28, 2006Applicants: CENTRAL MOTOR WHEEL CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Takahisa Iizuka, Kazuhiko Onoue, Atsuhito Aoki
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Publication number: 20060208029Abstract: To provide a wire aiming position control method and position control apparatus capable of accurately feeding a welding wire to an aiming position of a welded member regardless of a change in an amount of twisting the wire and to provide a wire aiming position control method and position control apparatus capable of accurately ensuring an aiming position of a torch and capable of ensuring stable welding quality even in thin plate welding, an intersection K1 of a linear line L1 connecting a center of a tip 10 and a wire front end and an extension plane L2 including an imaginary aiming position K disposed at a predetermined position is calculated. A wire displacement C constituting a distance between the intersection K1 and the imaginary aiming position K is calculated. At least either one of a welding wire W and a welded member 14 is corrected along the extension plane L2 by an amount of the wire displacement C.Type: ApplicationFiled: March 9, 2006Publication date: September 21, 2006Applicants: CENTRAL MOTOR WHEEL CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Takahisa Iizuka
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Publication number: 20050103766Abstract: An automatic groove-tracing welding system is capable of carrying out a welding operation, particularly, a welding operation involving weaving, without requiring monitoring even if conditions of a groove is different from design conditions of the groove. An image processor 3 receives an image signal representing an image of a weld zone 52 including the tip of a welding wire from a camera head 2 provided with a CCD camera, processes the image of the weld zone 52 to determine the position of a groove, calculates the positional relation of the groove with a welding torch 1, and sends a position correction for correcting the position of the welding torch 1 so that the welding path of the tip of the welding torch 1 may coincide with a predetermined middle part in the groove to a robot controller 43 for controlling a welding robot.Type: ApplicationFiled: March 4, 2003Publication date: May 19, 2005Inventors: Takahisa Iizuka, Hideaki Mizuno, Hiroki Kinoshita