Patents by Inventor Kohei Doi
Kohei Doi 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).
-
Publication number: 20190001618Abstract: Provided is a silicone foam sheet that expresses excellent bubble removability, that has satisfactory adhesiveness with an adherend and satisfactory sealability, that maintains the expression of these effects even when its thickness is reduced, that preferably expresses a stable modulus of elasticity over a region from a low-temperature region to a high-temperature region, and that suppresses both of its compression set in the low-temperature region and its compression set in the high-temperature region to low levels. Also provided is a method of producing such silicone foam sheet. The silicone foam sheet comprises an open-cell structure having a thickness of from 10 ?m to 3,000 ?m, wherein wherein an open-cell ratio is 90% or more, an average cell diameter of the silicone foam sheet is from 1 ?m to 50 ?m, and 90% or more of all cells therein has a cell diameter of 80 ?m or less.Type: ApplicationFiled: December 16, 2016Publication date: January 3, 2019Inventors: Kohei DOI, Toru ISEKI, Akihiro NAKAMURA, Syuji ENDO
-
Publication number: 20180363134Abstract: A film forming method comprises loading a substrate on a rotary table, forming an adsorption region for adsorbing a raw material gas to the substrate by discharging the raw material gas from multiple discharge ports, forming a reaction region, to which a reaction gas is supplied, at a position spaced from the adsorption region, separating an atmosphere of the adsorption region and an atmosphere of the reaction region by exhausting and by supplying a purge gas, forming a film by performing a cycle a plurality of times to deposit the reaction product on the substrate, the cycle comprising passing the substrate through the adsorption region and the reaction region and setting a combination of flow rates of the raw material gas for a first pattern in order to perform the cycle with the first pattern and for a second pattern in order to perform the cycle with the second pattern.Type: ApplicationFiled: June 15, 2018Publication date: December 20, 2018Inventors: Manabu HONMA, Yuka NAKASATO, Kohei DOI
-
Patent number: 10105929Abstract: A foamed sheet according to the present invention has a thickness of 30 to 500 ?m and includes a foam. The foam has a density of 0.2 to 0.7 g/cm3, an average cell diameter of 10 to 150 ?m, and a peak top of loss tangent (tan ?) occurring in a temperature range of from ?30° C. to 30° C., where the loss tangent is defined as the ratio of a loss modulus to a storage modulus determined at an angular frequency of 1 rad/s in dynamic viscoelastic measurement of the foam. The foam preferably has a maximum of the loss tangent (tan ?) in the temperature range of from ?30° C. to 30° C. of 0.2 or more.Type: GrantFiled: August 21, 2014Date of Patent: October 23, 2018Assignee: NITTO DENKO CORPORATIONInventors: Kohei Doi, Kunio Nagasaki, Tetsuya Otsuka, Mika Okada, Kazumichi Kato, Hideyuki Tokuyama, Tsunaki Kitahara, Tadao Takahashi, Kiichiro Matsushita
-
Patent number: 9707742Abstract: There is provided a flame-resistant composite member exhibiting remarkably high flame resistance even if having a flammable base material. The flame-resistant composite member according to the present invention has a film formed of a silicone resin composition (C) containing at least an inorganic oxide particle-containing condensation-reactive silicone resin on at least one surface of a base material. The inorganic oxide particle-containing condensation-reactive silicone resin may be a condensation-reactive silicone resin (A) including a crosslinked structural body wherein an inorganic oxide particle dispersed in a polysiloxane resin having a condensation-reactive group and the polysiloxane resin are crosslinked through a chemical bond. The silicone resin composition (C) may contain the condensation-reactive silicone resin (A) and an inorganic particle (B).Type: GrantFiled: November 13, 2012Date of Patent: July 18, 2017Assignee: NITTO DENKO CORPORATIONInventors: Kohei Doi, Kunio Nagasaki, Yusuke Sugino, Takafumi Hida, Yusuke Nakayama, Keisuke Hirano
-
Publication number: 20170121481Abstract: Provided is a resin foam (13) that highly restrains the occurrence of display irregularities in a display unit when the resin foam is used in a touch-screen-equipped device (1), where the display irregularities may occur with user's touch operations. The resin foam (13) according to the present invention is obtained by expansion of a resin composition including a resin. The resin foam has a 25% compression load of 0.1 N/cm2 to 8.0 N/cm2 and is used in the touch-screen-equipped device (1). The resin is preferably at least one resin selected from the group consisting of polyolefin resins, polyester resins, and acrylic resins.Type: ApplicationFiled: March 12, 2015Publication date: May 4, 2017Applicant: NITTO DENKO CORPORATIONInventors: Itsuhiro HATANAKA, Tetsuya OTSUKA, Yusuke YAMANARI, Hiroyuki SUZUKI, Kazumichi KATO, Kohei DOI
-
Publication number: 20160303822Abstract: The foamed sheet includes a foamed body having an average cell diameter of 10 to 200 ?m, and a compression set at 80° C. of not more than 80% and an impact absorption change rate of not more than ±20% defined by: Impact absorption change rate (%)={(an impact absorption rate b after high-temperature compression?an initial impact absorption rate a)/the initial impact absorption rate a}×100, where the impact absorption rate a is an impact absorption rate (%) of a test piece A and the impact absorption rate b (%) after high-temperature compression is an impact absorption rate (%) acquired by storing the test piece A at 80° C. for 72 hours in the state of being compressed by 60% with respect to the initial thickness of the test piece A, thereafter releasing the compression state, and thereafter conducting measurement after a lapse of 24 hours at 23° C.Type: ApplicationFiled: September 18, 2015Publication date: October 20, 2016Applicant: NITTO DENKO CORPORATIONInventors: Kazumichi KATO, Kohei DOI, Hideyuki TOKUYAMA, Tadao TAKAHASHI
-
Publication number: 20160304680Abstract: There is provided a foamed sheet which takes only a short time to recover the thickness thereof after being compressed, and even if being subjected to repeated impacts, hardly decreases in the impact absorption. The foamed sheet according to the present invention comprises a foamed body formed of a resin composition comprising: a thermoplastic resin a and a silicone-based compound b having not more than 2,000 siloxane bonds; and/or a thermoplastic resin a? having a silicone chain having not more than 2,000 siloxane bonds. The thermoplastic resin a is preferably at least one selected from the group consisting of acrylic polymers, rubbers, urethanic polymers and ethylene-vinyl acetate copolymers. The silicone-based compound b is preferably at least one selected from the group consisting of silicone oils, modified silicone oils and silicone resins.Type: ApplicationFiled: September 18, 2015Publication date: October 20, 2016Applicant: NITTO DENKO CORPORATIONInventors: Kohei Doi, Kazumichi Kato, Hideyuki Tokuyama, Tadao Takahashi
-
Publication number: 20160221299Abstract: A foamed sheet according to the present invention has a thickness of 30 to 500 ?m and includes a foam. The foam has a density of 0.2 to 0.7 g/cm3, an average cell diameter of 10 to 150 ?m, and a peak top of loss tangent (tan ?) occurring in a temperature range of from ?30° C. to 30° C., where the loss tangent is defined as the ratio of a loss modulus to a storage modulus determined at an angular frequency of 1 rad/s in dynamic viscoelastic measurement of the foam. The foam preferably has a maximum of the loss tangent (tan ?) in the temperature range of from ?30° C. to 30° C. of 0.2 or more.Type: ApplicationFiled: August 21, 2014Publication date: August 4, 2016Applicant: NITTO DENKO CORPORATIONInventors: Kohei DOI, Kunio NAGASAKI, Tetsuya OTSUKA, Mika OKADA, Kazumichi KATO, Hideyuki TOKUYAMA, Tsunaki KITAHARA, Tadao TAKAHASHI, Kiichiro MATSUSHITA
-
Patent number: 9382402Abstract: The flame-retardant silicone resin composition of the present invention comprises: an inorganic oxide particle-containing condensation-reactive silicone resin (A) comprising a crosslinking structure in which inorganic oxide particles dispersed in a polysiloxane resin having a condensation-reactive group are crosslinked with the polysiloxane resin by chemical bonds; and inorganic particles (B). The inorganic oxide particles are preferably at least one type of inorganic oxide particles selected from the group consisting of silica, alumina, glass frit, and antimony-doped tin oxide.Type: GrantFiled: April 9, 2013Date of Patent: July 5, 2016Assignee: NITTO DENKO CORPORATIONInventors: Kohei Doi, Kunio Nagasaki, Yusuke Sugino, Takafumi Hida, Yusuke Nakayama, Keisuke Hirano
-
Publication number: 20150299529Abstract: Provided is technical means for making various base materials non-combustible to improve fire resistance, the technical means being capable of imparting sufficiently high fire resistance, which meets the accreditation criteria for a fire-proof material under the Building Standard Law to the extent possible, to the various base materials with ease at low cost. Also provided is a fire-resistant construction material having sufficiently high fire resistance, which meets the accreditation criteria for a fire-proof material under the Building Standard Law to the extent possible, with ease at low cost. A fire-resistant pressure-sensitive adhesive tape of the present invention is a fire-resistant pressure-sensitive adhesive tape, including: a fire-resistant layer; and a pressure-sensitive adhesive layer, in which the fire-resistant layer includes aluminum.Type: ApplicationFiled: March 7, 2013Publication date: October 22, 2015Applicant: NITTO DENKO CORPORATIONInventors: Kohei DOI, Kunio NAGASAKI, Yusuke SUGINO, Takafumi HIDA, Yusuke NAKAYAMA
-
Publication number: 20150062896Abstract: The flame-retardant silicone resin composition of the present invention comprises: an inorganic oxide particle-containing condensation-reactive silicone resin (A) comprising a crosslinking structure in which inorganic oxide particles dispersed in a polysiloxane resin having a condensation-reactive group are crosslinked with the polysiloxane resin by chemical bonds; and inorganic particles (B). The inorganic oxide particles are preferably at least one type of inorganic oxide particles selected from the group consisting of silica, alumina, glass frit, and antimony-doped tin oxide.Type: ApplicationFiled: April 9, 2013Publication date: March 5, 2015Applicant: NITTO DENKO CORPORATIONInventors: Kohei Doi, Kunio Nagasaki, Yusuke Sugino, Takafumi Hida, Yusuke Nakayama, Keisuke Hirano
-
Publication number: 20140301090Abstract: There is provided a flame-resistant composite member exhibiting remarkably high flame resistance even if having a flammable base material. The flame-resistant composite member according to the present invention has a film formed of a silicone resin composition (C) containing at least an inorganic oxide particle-containing condensation-reactive silicone resin on at least one surface of a base material. The inorganic oxide particle-containing condensation-reactive silicone resin may be a condensation-reactive silicone resin (A) including a crosslinked structural body wherein an inorganic oxide particle dispersed in a polysiloxane resin having a condensation-reactive group and the polysiloxane resin are crosslinked through a chemical bond. The silicone resin composition (C) may contain the condensation-reactive silicone resin (A) and an inorganic particle (B).Type: ApplicationFiled: November 13, 2012Publication date: October 9, 2014Inventors: Kohei Doi, Kunio Nagasaki, Yusuke Sugino, Takafumi Hida, Yusuke Nakayama, Keisuke Hirano
-
Publication number: 20140287225Abstract: The present invention provides a transparent heat-resistant non-flammable film that has high transparency, heat resistance, and flame retardancy. The transparent heat-resistant non-flammable film according to the present invention includes a transparent heat-resistant protective layer comprising a polysiloxane resin containing a particulate inorganic oxide as a crosslinking agent on at least one surface of a transparent amorphous thermoplastic resin film having a heat distortion temperature of 250° C. or less. The transparent heat-resistant protective layer preferably has a refractive index in the range of 1.40 to 1.43. The transparent heat-resistant protective layer preferably has a thickness in the range of 1 to 100 ?m.Type: ApplicationFiled: October 31, 2012Publication date: September 25, 2014Applicant: NITTO DENKO CORPORATIONInventors: Keisuke Hirano, Kohei Doi, Yusuke Sugino, Shigeki Ishiguro
-
Publication number: 20140135417Abstract: Provided is a transparent pressure-sensitive adhesive agent convertible into an adhesive agent that allows adherends to be instantly fixed to each other, allows the adherends to be reattached to each other, is excellent in processability such as being able to be cut into a sheet shape, is not peeled from the adherends even when exposed to a high-temperature atmosphere such as one in a fire, and has such transparency as to hardly impair the designs of the adherends. The transparent pressure-sensitive adhesive agent convertible into an adhesive agent has pressure-sensitive adhesive property before being sintered, and has adhesive property after being sintered.Type: ApplicationFiled: July 13, 2012Publication date: May 15, 2014Applicant: NITTO DENKO CORPORATIONInventors: Yusuke Sugino, Kunio Nagasaki, Kohei Doi, Takafumi Hida, Yusuke Nakayama
-
Publication number: 20140004331Abstract: Provided is a shatterproofing member including a pressure-sensitive adhesive layer convertible into an adhesive layer, which allows adherends to be instantly fixed to each other, allows the adherends to be reattached to each other, is excellent in processability such as being able to be cut into a sheet shape, is not peeled from the adherends even when exposed to a high-temperature atmosphere such as one in a fire, and can express shatterproof property when attached to an adherend that is broken by combustion such as glass even if exposed to combustion during a fire or the like. The shatterproofing member including a pressure-sensitive adhesive layer convertible into an adhesive layer includes: a pressure-sensitive adhesive layer convertible into an adhesive layer; and a flame-resistant material, in which the pressure-sensitive adhesive layer convertible into an adhesive layer has pressure-sensitive adhesive property before being sintered, and has adhesive property after being sintered.Type: ApplicationFiled: March 9, 2012Publication date: January 2, 2014Applicant: NITTO DENKO CORPORATIONInventors: Takafumi Hida, Kunio Nagasaki, Yusuke Sugino, Kohei Doi, Yusuke Nakayama
-
Publication number: 20130309482Abstract: Provided is a flame-retardant member having thermal functionality, flexibility, and a high level of flame retardancy. The thermally functional flame-retardant polymer member includes a polymer layer (B), a flame-retardant layer (A), and a thermally functional layer (L) in the stated order, in which the flame-retardant layer (A) includes a layer containing a layered inorganic compound (f) in a polymer.Type: ApplicationFiled: June 16, 2011Publication date: November 21, 2013Applicant: NITTO DENKO CORPORATIONInventors: Yusuke Sugino, Kunio Nagasaki, Kohei Doi, Takafumi Hida
-
Publication number: 20130309487Abstract: Provided is a pressure-sensitive adhesive agent convertible into an adhesive agent, which allows adherends to be instantly fixed to each other, allows the adherends to be reattached to each other, is excellent in processability such as being able to be cut into a sheet shape, and is not peeled from the adherends even when exposed to a high-temperature atmosphere such as one in a fire. The pressure-sensitive adhesive agent convertible into an adhesive agent has pressure-sensitive adhesive property before being sintered, and has adhesive property after being sintered.Type: ApplicationFiled: February 3, 2012Publication date: November 21, 2013Applicant: NITTO DENKO CORPORATIONInventors: Yusuke Sugino, Kunio Nagasaki, Kohei Doi, Takafumi Hida, Yusuke Nakayama
-
Publication number: 20130251987Abstract: Provided is a member which is excellent in transparency and flexibility, and can impart a resistance to cigarette burns to various adherends by being attached to the various adherends. Specifically provided is a polymer member with a resistance to cigarette burns, including a polymer layer, in which: the polymer layer contains a layered inorganic compound (f) in a polymer (X); and the polymer (X) contains a cross-linked polymer.Type: ApplicationFiled: December 2, 2011Publication date: September 26, 2013Applicant: NITTO DENKO CORPORATIONInventors: Yusuke Sugino, Kunio Nagasaki, Kohei Doi, Takafumi Hida, Yusuke Nakayama
-
Publication number: 20130224467Abstract: Provided are a novel foam which has a uniform fine-cell structure and is excellent in toughness and heat resistance, and a production method therefor. Also provided is a functional foam which includes the above-mentioned foam and has imparted thereto various functions. The foam includes spherical cells, in which: the spherical cells each have an average pore diameter of less than 20 ?m; the foam has a density of 0.15 g/cm3 to 0.9 g/cm3; and the foam is crack-free in a 180° bending test. The functional foam includes the foam.Type: ApplicationFiled: August 16, 2011Publication date: August 29, 2013Applicant: NITTO DENKO CORPORATIONInventors: Akira Hirao, Kohei Doi, Azusa Iseki, Yusuke Nakayama, Kunio Nagasaki
-
Publication number: 20130216814Abstract: Provided is a W/O emulsion, including a continuous oil phase component and an aqueous phase component immiscible with the continuous oil phase component, in which: the continuous oil phase component includes a hydrophilic polyurethane-based polymer and an ethylenically unsaturated monomer; the hydrophilic polyurethane-based polymer includes a polyoxyethylene polyoxypropylene unit derived from polyoxyethylene polyoxypropylene glycol; and the polyoxyethylene polyoxypropylene unit includes 5 wt % to 25 wt % of polyoxyethylene. Also provided is a foam, including a hydrophilic polyurethane-based polymer, in which: the foam has an open-cell structure in which through-holes are present between adjacent spherical cells; the spherical cells each have an average pore diameter of less than 20 ?m; the through-holes each have an average pore diameter of 5 ?m or less; and the foam has surface openings each having an average pore diameter of 20 ?m or less in a surface thereof.Type: ApplicationFiled: August 16, 2011Publication date: August 22, 2013Applicant: NITTO DENKO CORPORATIONInventors: Akira Hirao, Kohei Doi, Azusa Iseki, Yusuke Nakayama, Kunio Nagasaki, Eiichi Imoto