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Hiroshi Tsukamoto
Hiroshi Tsukamoto, Shizuoka JP
| Patent application number | Description | Published |
|---|---|---|
| 20090087894 | Method for improving enzymatic activity of glycosyltransferases - The present invention provides an inexpensive and simple method which allows efficient glycosylation with glycosyltransferases derived from microorganisms of the Vibrionaceae family when compared to conventional enzymatic reaction systems. | 04-02-2009 |
| 20100112616 | NOVEL BETA-GALACTOSIDE-a2,6-SIALYLTRANSFERASE, A GENE ENCODING THEREOF, AND A METHOD FOR ENHANCING ENZYME ACTIVITY - The present invention provides an extremely useful and novel β-galactoside-α2,6-sialyltransferase having an optimum reaction pH in a neutral to alkaline range, and a nucleic acid encoding the sialyltransferase. The present invention further provides a vector carrying a nucleic acid encoding the sialyltransferase, and a host cell transformed with the vector, as well as a method for producing a recombinant β-galactoside-α2,6-sialyltransferase. | 05-06-2010 |
| 20100311076 | METHOD OF BINDING PROTEINS TO CARRIERS BY MAKING USE OF TAMAVIDINS - The present invention provides a method of binding a protein to a carrier in such a way that the protein is not impaired in its function but can be allowed to act more efficiently than when it is bound directly. | 12-09-2010 |
Hiroshi Tsukamoto, Iwata-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090291471 | Novel Beta-Galactoside Alpha 2,6-Sialyltransferase, Gene Coding For The Transferase And Process For Producing The Same - The present invention provides a novel β-galactoside-α2,6-sialyltransferase having high productivity and/or high activity, and a nucleic acid encoding the sialyltransferase. The present invention also provides a microorganism producing the sialyltransferase. The present invention further provides a vector carrying a nucleic acid encoding the sialyltransferase, and a host cell transformed with the vector, as well as a method for producing a recombinant β-galactoside-α2,6-sialyltransferase. | 11-26-2009 |
| 20100291631 | Novel Beta-Galactoside-Alpha 2,3-Sialyltransferase, a Gene Encoding Thereof, and a Method for Producing Thereof - The present invention provides a novel β-galactoside-α2,3-sialyltransferase and a nucleic acid encoding the sialyltransferase. The present invention also provides a microorganism producing the sialyltransferase, as well as a method for producing the sialyltransferase using such a microorganism. The present invention further provides a vector carrying a nucleic acid encoding the sialyltransferase, and a host cell transformed with the vector, as well as a method for producing a recombinant β-galactoside-α2,3-sialyltransferase. The present invention further provides a method for preparing a sialylsugar chain, which uses the sialyltransferase of the present invention. | 11-18-2010 |
| 20100304460 | NOVEL BETA-GALACTOSIDE-ALPHA2, 6-SIALYLTRANSFERASE, A GENE ENCODING THEREOF, AND A METHOD FOR PRODUCING THEREOF - The present invention provides a novel β-galactoside-α2,6-sialyltransferase having high productivity and/or high activity, and a nucleic acid encoding the sialyltransferase. The present invention also provides a microorganism producing the sialyltransferase. The present invention further provides a vector carrying a nucleic acid encoding the sialyltransferase, and a host cell transformed with the vector, as well as a method for producing a recombinant β-galactoside-α2,6-sialyltransferase. | 12-02-2010 |
Hiroshi Tsukamoto, Fukuoka JP
| Patent application number | Description | Published |
|---|---|---|
| 20100158720 | VALVELESS MICROPUMP - A valveless micropump for transforming a pressure variation of fluid in a volume variation chamber ( | 06-24-2010 |
Hiroshi Tsukamoto, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20100133688 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - In semiconductor integrated circuit devices for vehicle use or the like, in general, an aluminum pad on a semiconductor chip and an external device are coupled to each other by wire bonding or the like using a gold wire and the like for the convenience of mounting. Such a semiconductor integrated circuit device, however, causes a connection failure due to the interaction between aluminum and gold in use for a long time at a relatively high temperature (about 150 degrees C.). The invention of the present application provides a semiconductor integrated circuit device (semiconductor device or electron circuit device) which includes a semiconductor chip as a part of the device, an electrolytic gold plated surface film (gold-based metal plated film) provided over an aluminum-based bonding pad on a semiconductor chip via a barrier metal film, and a gold bonding wire (gold-based bonding wire) for interconnection between the plated surface film and an external lead provided over a wiring board or the like (wiring substrate). | 06-03-2010 |
Hiroshi Tsukamoto, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20090003021 | CHOPPER TYPE DC-DC CONVERTER - A chopper type DC-DC converter includes a voltage converting circuit, a comparative wave generating circuit, a comparator group, and a switch control circuit. The voltage converting circuit converts a first voltage into a second voltage. The comparative wave generating circuit generates first and second comparative waves such that the voltage range of the first comparative wave is different from the voltage range of the second comparative wave. The comparator group generates a first comparison result signal indicating a result of comparison between the first comparative wave and an error signal indicating an error between the second voltage and target voltage and a second comparison result signal indicating a result of comparison between the second comparative wave and the error signal. The switch control circuit controls the voltage converting circuit based on the first and second comparison signals. The comparative wave generating circuit includes first and second comparative wave generating circuits. The first and second comparative wave generating circuits respectively generate the first and second comparative waves based on different source voltage groups. | 01-01-2009 |