Patents by Inventor Hiroaki Tateno
Hiroaki Tateno 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).
-
Patent number: 9279809Abstract: Provided are a method for accurately evaluating the differentiation status of stem cells by selectively staining only stem cells in an undifferentiated state, and a method for positively isolating only stem cells in an undifferentiated state. Specifically provided is a method for determining differentiation of a cell comprising a step of contacting a test cell with a probe comprising protein (A) or (B) below and a step of detecting the presence of binding of the probe to the test cell. The method for determining differentiation of a cell is capable of detecting the presence or absence of an undifferentiated stem cell in test cells by using a probe that specifically reacts with undifferentiated stem cells and detecting the presence of bonding to the test cell.Type: GrantFiled: February 27, 2013Date of Patent: March 8, 2016Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Hiroaki Tateno, Jun Hirabayashi, Makoto Asashima, Yuzuru Ito, Yasuko Onuma, Masaki Warashina, Masakazu Fukuda
-
Publication number: 20150376568Abstract: An object of the present invention is to provide a method for introducing a target substance into undifferentiated cells, and a carrier therefor, whereby the target substance can be specifically introduced into the undifferentiated cells by contacting the undifferentiated cells with an rBC2LCN-target substance fusion product in which rBC2LCN lectin is fused to the target substance. Particularly, an rBC2LCN-toxin fusion product in which rBC2LCN lectin is fused to a toxin functioning in cells or its domain having the ability to kill cells functions as an agent for eliminating undifferentiated stem cells and can be administered into a medium after inducing the differentiation of the stem cells to reliably kill only the stem cells in an undifferentiated state.Type: ApplicationFiled: February 13, 2014Publication date: December 31, 2015Inventors: Hiroaki Tateno, Yuzuru Ito, Yasuko Onuma, Jun Hirabayashi, Makoto Asashima
-
Publication number: 20150329602Abstract: [Problem] The purpose of the present invention is to stably supply high-quality and highly uniform Wisteria floribunda agglutinin (WFA) that recognizes biologically important sugar-chain markers, to elucidate the sugar-chain recognition activity in detail, and to furthermore increase the specificity of the sugar-chain recognition activity. [Solution] The present invention involves the development of a technique for cloning genes for coding Wisteria floribunda agglutinin (WFA) and producing recombinant WFA having the same sugar-chain recognition activity as natural WFA from transformed bacteria. Natural WFA is reduced to thereby manufacture a reduced WFA monomer for specifically recognizing terminal GalNAc residue. A recombinant monomer WFA for recognizing LDN (GalNAc?1, 4GlcNAc) sugar chain, which is important as a diagnostic marker among sugar chains having a terminal GalNAc residue, is manufactured by introducing cysteine mutation to recombinant WFA or by C-terminal-side amino acid deletion.Type: ApplicationFiled: December 18, 2013Publication date: November 19, 2015Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE TECHNOLOGYInventors: Takashi Sato, Yasunori Chiba, Hiroaki Tateno, Hiroyuki Kaji, Masanori Goto, Hisashi Narimatsu
-
Publication number: 20150204870Abstract: An object of the present invention is to provide a method for evaluating a differentiation status of cells using a culture supernatant of stem cells. Provided is “undifferentiation sugar chain marker” composed of the sugar chain structure “Fuc?1-2Gal?1-3GlcNAc” or “Fuc?1-2Gal?1-3GalNAc” and capable of sensitively determining the undifferentiated state of stem cells using a culture supernatant of stem cells. Also found is BC2LCN lectin or a modified product thereof capable of sensitively recognizing the “undifferentiation sugar chain marker” as excellent “probe for detecting the undifferentiation sugar chain marker” capable of determining the undifferentiation status of cells using a culture supernatant.Type: ApplicationFiled: October 31, 2012Publication date: July 23, 2015Inventors: Hiroaki Tateno, Jun Hirabayashi, Yuzuru Ito, Yasuko Onuma, Makoto Asashima, Atsushi Kuno, Masaki Warashina, Masakazu Fukuda
-
Publication number: 20150111218Abstract: Provided are a method for accurately evaluating the differentiation status of stem cells by selectively staining only stem cells in an undifferentiated state, and a method for positively isolating only stem cells in an undifferentiated state. Specifically provided is a method for determining differentiation of a cell comprising a step of contacting a test cell with a probe comprising protein (A) or (B) below and a step of detecting the presence of binding of the probe to the test cell. The method for determining differentiation of a cell is capable of detecting the presence or absence of an undifferentiated stem cell in test cells by using a probe that specifically reacts with undifferentiated stem cells and detecting the presence of bonding to the test cell.Type: ApplicationFiled: February 27, 2013Publication date: April 23, 2015Applicants: National Institute of Advanced Industrial Science and Technology, Wako Pure Chemical Industries, Ltd.Inventors: Hiroaki Tateno, Jun Hirabayashi, Makoto Asashima, Yuzuru Ito, Yasuko Onuma, Masaki Warashina, Masakazu Fukuda
-
Patent number: 8461305Abstract: Disclosed is a novel lectin which can bind specifically to an L-fucose ?1?6 sugar chain. Also disclosed is use of the lectin. The L-fucose ?1?6 specific lectin of the present invention is characterized in that: (1) the lectin is extracted from a basidiomycete or an ascomycete; (2) the lectin has a molecular weight by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) of 4,000 to 40,000; and (3) the lectin has an affinity to an L-fucose ?1?6 sugar chain, the affinity being represented by an association constant of 1.0×104M?1 or more (at 25 degrees C.). The lectin can be used for detecting an L-fucose ?1?6 sugar chain specifically, and is effective for the purification of an L-fucose ?1?6 sugar chain or a non L-fucose ?1?6 sugar chain.Type: GrantFiled: July 15, 2009Date of Patent: June 11, 2013Assignees: J-Oil Mills, Inc., National Institute of Advanced Industrial Science and Technology, National University Corporation Shizuoka UniversityInventors: Yuka Kobayashi, Jun Hirabayashi, Hiroaki Tateno, Hirokazu Kawagishi, Hideo Dohra
-
Patent number: 7973584Abstract: Timing setting data include an arbitrary combination of a set timing signal indicating a positive edge timing and a reset timing signal indicating a negative edge timing. A sort unit sorts n pieces of the timing setting data in accordance with timing orders indicated by each of the timing setting data. With reference to the sorted timing setting data an open processor detects continuation of the set timing signals or continuation of the reset timing signals, and invalidates one of the continuous set timing signals or one of the continuous reset timing signals. An edge assigning unit sequentially assigns the set/reset timing signals remaining without being invalidated to, among the m variable delay circuits for setting/resetting, the variable delay circuits for setting/resetting in the ascending order of the frequencies of use thereof by then.Type: GrantFiled: September 4, 2008Date of Patent: July 5, 2011Assignee: Advantest CorporationInventors: Nobuei Washizu, Hiroaki Tateno
-
Publication number: 20110129938Abstract: Disclosed is a novel lectin which can bind specifically to an L-fucose ?1?6 sugar chain. Also disclosed is use of the lectin. The L-fucose ?1?6 specific lectin of the present invention is characterized in that: (1) the lectin is extracted from a basidiomycete or an ascomycete; (2) the lectin has a molecular weight by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) of 4,000 to 40,000; and (3) the lectin has an affinity to an L-fucose ?1?6 sugar chain, the affinity being represented by an association constant of 1.0×104M?1 or more (at 25 degrees C.). The lectin can be used for detecting an L-fucose ?1?6 sugar chain specifically, and is effective for the purification of an L-fucose ?1?6 sugar chain or a non L-fucose ?1?6 sugar chain.Type: ApplicationFiled: July 15, 2009Publication date: June 2, 2011Inventors: Yuka Kobayashi, Jun Hirabayashi, Hiroaki Tateno, Hirokazu Kawagishi, Hideo Dohra
-
Publication number: 20100194460Abstract: Timing setting data include an arbitrary combination of a set timing signal indicating a positive edge timing and a reset timing signal indicating a negative edge timing. A sort unit sorts n pieces of the timing setting data in accordance with timing orders indicated by each of the timing setting data. With reference to the sorted timing setting data an open processor detects continuation of the set timing signals or continuation of the reset timing signals, and invalidates one of the continuous set timing signals or one of the continuous reset timing signals. An edge assigning unit sequentially assigns the set/reset timing signals remaining without being invalidated to, among the m variable delay circuits for setting/resetting, the variable delay circuits for setting/resetting in the ascending order of the frequencies of use thereof by then.Type: ApplicationFiled: September 4, 2008Publication date: August 5, 2010Applicant: ADVANTEST CORPORATIONInventors: Nobuei Washizu, Hiroaki Tateno
-
Patent number: 6305499Abstract: An elevator system (10) includes an elevator car (18) supported for vertical movement on a belt (16) having an end fixed to the hoistway (26) and the other end wound about a drum (32) of a drum drive (12). When the belt (16) is wound or unwound about the drum (32), the elevator car (18) is raised or lowered, respectively.Type: GrantFiled: May 8, 2000Date of Patent: October 23, 2001Assignee: Otis Elevator CompanyInventors: David W. Jones, Yuji Kanzaki, Tadaaki Nabetani, Toshimitsu Mori, Shusaku Shibasaki, Yasuhisa Shioda, Hiroaki Tateno
-
Patent number: 5437018Abstract: A compact, low power consumption, light weight, highly reliable and high speed information processing system is provided by employing a semiconductor auxiliary storage device in lieu of conventional magnetic storage or memory elements, such as floppy or hard disks. An access request to such a magnetic storage or memory element is converted to an access request for the semiconductor auxiliary storage which uses semiconductor integrated circuits without requiring any modification of existing programs, such as, application software and disk operating systems. A memory circuit in the semiconductor auxiliary storage comprises ROM and RAM, and a portion of the ROM contents is copied into the RAM so that access modification for programs and data is permitted while the basic program and data is retained in a nonvolatile manner.Type: GrantFiled: July 2, 1993Date of Patent: July 25, 1995Assignee: Seiko Epson CorporationInventors: Junichi Kobayashi, Hiroaki Tateno, Masayuki Ikeda, Shogo Samejima
-
Patent number: 5396971Abstract: Motor control arrangement for elevator car doors includes a controller which outputs driving signals to the door opening/closing motor which opens or closes the door of the car, a door open button and a door close button provided in the car for opening or closing the door of the car, a first line for transmitting an open signal from the door open button to the controller, and a second line for transmitting a close signal from the door close button to the controller. The first line and the second line communicate with (or are connected to) a third line. Within this third line, a break contact of a detection switch that operates (e.g., opens) when the car door is fully open is provided. A make contact (normally open) of the detection switch is provided between a connection point on the second line and the controller. When the car door starts to close, the make contact opens and the break contact closes so that only an open signal is transmittable to the controller.Type: GrantFiled: December 3, 1993Date of Patent: March 14, 1995Assignee: Otis Elevator CompanyInventors: Hiroaki Tateno, Osamu Yoshida
-
Patent number: 5226168Abstract: A compact, low power consumption, light weight, highly reliable and high speed information processing system is provided by employing a semiconductor auxiliary storage device in lieu of conventional magnetic storage or memory elements, such as floppy or hard disks. An access request to such a magnetic storage or memory element is converted to an access request for the semiconductor auxiliary storage which uses semiconductor integrated circuits without requiring any modification of existing programs, such as, application software and disk operating systems. A memory circuit in the semiconductor auxiliary storage comprises ROM and RAM, and a portion of the ROM contents is copied into the RAM so that access modification for programs and data is permitted while the basic program and data is retained in a nonvolatile manner.Type: GrantFiled: April 24, 1990Date of Patent: July 6, 1993Assignee: Seiko Epson CorporationInventors: Junichi Kobayashi, Hiroaki Tateno, Masayuki Ikeda, Shogo Samejima