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Hiroyuki Takei
Hiroyuki Takei, Chiba JP
| Patent application number | Description | Published |
|---|---|---|
| 20090311619 | TONER FOR ELECTROPHOTOGRAPHY AND BINDER RESIN FOR TONER - Disclosed is a toner for electrophotography containing at least a binder resin. This toner for electrophotography is characterized in that (a) the tetrahydrofuran (THF) soluble content in the toner has a first peak in the molecular weight region of not less than 2,000 but less than 5,000 and a second peak in the molecular weight region of not less than 100,000 but less than 200,000 in the chromatogram obtained by gel permeation chromatography (GPC); (b) the binder resin contains at least a carboxyl group-containing vinyl resin (C) and a glycidyl group-containing vinyl resin (E); and (c) the mass ratio of the styrene monomer to the acrylic monomer in the binder resin, namely (S/A), is not less than 4.6 but less than 8.5. | 12-17-2009 |
| 20100003611 | RESIN COMPOSITION FOR TONER, AND TONER USING THE RESIN COMPOSITION - Disclosed is a resin composition for toners, which contains a resin (D) obtained by reacting a styrene polymer (A) containing an active hydrogen group and having a peak molecular weight (Mp) of not less than 30,000 but not more than 2,000,000, a styrene polymer (B) containing a carboxyl group and having a peak molecular weight (Mp) of not less than 2,000 but not more than 20,000, and a crosslinkable compound (C) having an isocyanate group. | 01-07-2010 |
| 20100209837 | Binder Resin for Color Toners and Color Toner Using the Same - Provided is a binder resin for color toners which comprises at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E) and a reaction product thereof, wherein the storage modulus G′ at 160 degrees centigrade is not less than 20 and less than 800 Pa measured at a frequency of 6.28 rad/sec, the tetrahydrofuran (THF) soluble portion in the binder resin has a main peak in the molecular weight region of not less than 20,000 and less than 40,000 in the molecular weight distribution measured by gel permeation chromatography (GPC), and the binder resin contains at least one of releasing agents having a melting point of not lower than 60 and not higher than 120 degrees centigrade in an amount of not less than 3.5 and not more than 12 mass % based on 100 mass % of the total amount of the carboxyl group-containing vinyl resin (C), the glycidyl group-containing vinyl resin (E) and a reaction product thereof. | 08-19-2010 |
| 20100248121 | Binder Resin for Color Toners and Color Toner Using the Same - Provided is a binder resin for color toners which comprises at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E) and a reaction product thereof, and contains both a tetrahydrofuran (THF) soluble portion and a THF insoluble gel portion, wherein the THF soluble portion has a main peak in the molecular weight region of not less than 10,000 and less than 15,000 in the chromatogram obtained by gel permeation chromatography (GPC), the content of the THF insoluble gel portion is less than 1 mass %, and the softening point is not more than 130 degrees centigrade. | 09-30-2010 |
Hiroyuki Takei, Onomichi-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100129707 | ELECTROCHEMICAL CELL - An electrochemical cell has a first metal case, a second metal case and a gasket. The first metal case has a first disk portion and a first wall. The second metal case has a second disk portion and a second wall. The gasket is interposed between the first metal case and the second metal case. A bottom surface of the gasket is formed such that one of the outer edge and the inner edge of the bottom surface is spaced from the second disk portion by a predetermined distance. The bottom surface of the gasket inclines with respect to the second disk portion. When an end portion of the second wall is bent toward the first wall, the bottom surface of the gasket contacts the second disk portion. | 05-27-2010 |
Hiroyuki Takei, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20090203118 | OPTICAL SYSTEM INCLUDING NANOSTRUCTURES FOR BIOLOGICAL OR CHEMICAL SENSING - An analytical device is disclosed. In one embodiment, the analytical device includes a three-dimensional substrate structure comprising a three-dimensional surface. A plurality of noble metal nanoparticles are on the three-dimensional substrate structure. A plurality of capture agents are on the noble metal nanoparticles. | 08-13-2009 |
Hiroyuki Takei, Sodegaura-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090020900 | Process for Producing Resin Microparticles for a Toner Raw Material - An object of the present invention is to provide a resin microparticle for a toner raw material that has a small particle diameter and a narrow particle diameter distribution and has a low odor. | 01-22-2009 |
Hiroyuki Takei, Hatoyama JP
| Patent application number | Description | Published |
|---|---|---|
| 20080213814 | ENZYMATIC ASSAY FOR LSPR - The present invention provides a method of detecting changes in the refractive index at the surface of a localized surface plasmon resonance (LSPR) detection system. The method includes generating an insoluble product from an enzymatic substrate using an immobilized enzyme, wherein the insoluble product accumulates at a LSPR supporting surface. The method also includes detecting changes in the reflected or transmitted light of the surface arising from the presence of the insoluble product using LSPR. | 09-04-2008 |
Hiroyuki Takei, Kariya-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20120001519 | VIBRATION ACTUATOR - A vibration actuator includes a roller, a vibrating element having a contact portion that is in contact with the roller, a vibrator for vibrating the vibrating element, a pressing device for pressing the roller against the vibrating element, and a lubricator disposed close to the contact portion and in contact with the roller. | 01-05-2012 |
Hiroyuki Takei, Kai-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20120011887 | METHOD OF PURIFYING AIR - A pre-purification method of feed air for cryogenic air separation, which includes; (a) an adsorption step wherein a compressed feed air is supplied in an adsorption column, wherein a moisture adsorbent and a carbon dioxide adsorbent are filled in this order from the side where the feed air is introduced in the column, to remove water and carbon dioxide from the feed air; (b) a decompression step wherein pressure in the adsorption column is reduced; (c) a heating step wherein the adsorbents in the decompressed column are heated and regenerated, and the heating step includes a total heating step wherein the moisture adsorbent and the carbon dioxide adsorbent are heated and a partial heating step wherein the moisture adsorbent is heated; (d) a cooling step wherein the adsorbents are cooled by introducing a purge gas, which is not heated, to the adsorption column; and (e) a pressurization step wherein the cooled adsorbents are pressurized by purified air. | 01-19-2012 |
Hiroyuki Takei, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20120077262 | LIQUID REFLUX HIGH-SPEED GENE AMPLIFICATION DEVICE - The present invention provides a liquid reflux reaction control device comprising: | 03-29-2012 |