Patents by Inventor Tomonari Naito
Tomonari Naito 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: 20150218420Abstract: The present invention provides an anti-fouling pressure-sensitive adhesive sheet and anti-fouling treatment method capable of preventing peeling from overlapping portions when adjacent anti-fouling pressure-sensitive adhesive sheets are attached by allowing end portions thereof to overlap each other. The anti-fouling pressure-sensitive adhesive sheet of the present invention includes a base material layer; a pressure-sensitive adhesive layer provided on one side of the base material layer; and an anti-fouling layer provided on another side of the base material layer, wherein the anti-fouling pressure-sensitive adhesive sheet has, at an end portion thereof, a bonding margin including parts of the base material layer and the pressure-sensitive adhesive layer, the parts extending beyond the anti-fouling layer.Type: ApplicationFiled: August 30, 2013Publication date: August 6, 2015Applicant: NITTO DENKO CORPORATIONInventors: Kazutaka Hara, Naoki Kurata, Tomonari Naito, Satoru Suzuki, Taiki Sueyoshi, Kouji Maruyama
-
Publication number: 20150079345Abstract: Provided is a pressure-sensitive adhesive tape for preventing adhesion of an aquatic organism that: can express good adhesion even in water; has good mechanical characteristics; facilitates its peeling operation; has a small surface roughness; can maintain an antifouling effect over a long time period; has a small load on a human body or an environment; has a light weight; can maintain stable quality; can effectively prevent the adhesion of an aquatic organism; and when bonded onto a ship's hull, can make contributions to improving fuel efficiency and reducing CO2 emission. The pressure-sensitive adhesive tape for preventing adhesion of an aquatic organism of the present invention includes an antifouling layer, a base material layer, and a pressure-sensitive adhesive layer in the stated order, in which the antifouling layer has a ten-point average surface roughness Rz of 5.0 ?m or less.Type: ApplicationFiled: March 26, 2013Publication date: March 19, 2015Applicant: NITTO DENKO CORPORATIONInventors: Naoki Kurata, Tomonari Naito, Taiki Sueyoshi, Satoru Suzuki, Kazutaka Hara
-
Publication number: 20150004406Abstract: Provided is a pressure-sensitive adhesive tape for preventing adhesion of aquatic organisms excellent in impact resistance and capable of preventing damage to or loss of its antifouling layer due to a colliding object. A pressure-sensitive adhesive tape for preventing adhesion of aquatic organisms of the present invention includes an antifouling layer, a base material layer, and a pressure-sensitive adhesive layer in the stated order, in which the base material layer has an impact absorption rate of 10% or more.Type: ApplicationFiled: December 20, 2012Publication date: January 1, 2015Applicant: NITTO DENKO CORPORATIONInventors: Satoru Suzuki, Tomonari Naito, Taiki Sueyoshi, Naoki Kurata
-
Publication number: 20140377552Abstract: A pressure-sensitive adhesive tape for preventing adhesion of an aquatic organism including an antifouling layer, a base material layer, and a pressure-sensitive adhesive layer in the stated order, in which the antifouling layer includes a silicone resin. The pressure-sensitive adhesive tape can express good adhesion even in water; has good mechanical characteristics; facilitates its peeling operation; can maintain an antifouling effect over a long time period; has a small load on a human body or an environment; has a light weight; can maintain stable quality; and can effectively prevent the adhesion of an aquatic organism.Type: ApplicationFiled: December 5, 2012Publication date: December 25, 2014Applicant: NITTO DENKO CORPORATIONInventors: Naoki Kurata, Tomonari Naito, Taiki Sueyoshi, Satoshi Suzuki, Kazutaka Hara
-
Publication number: 20140356587Abstract: A method of preventing fouling structure including: preparing an antifouling pressure-sensitive adhesive tape including a base material layer (A) and a pressure-sensitive adhesive layer (A), and an easily adhering pressure-sensitive adhesive tape including a base material layer (B) easily adhering to the pressure-sensitive adhesive layer (A) and a pressure-sensitive adhesive layer (B); bonding the easily adhering pressure-sensitive adhesive tape to a surface of a structure, and bonding the antifouling pressure-sensitive adhesive tape onto the bonded easily adhering pressure-sensitive adhesive tape so that lengthwise directions of the tapes are non-parallel with each other, or bonding the two or more antifouling pressure-sensitive adhesive tapes and the at least one easily adhering pressure-sensitive adhesive tape onto a surface of a structure so that the antifouling pressure-sensitive adhesive tapes are prevented from overlapping each other and a junction between the antifouling pressure-sensitive adhesive taType: ApplicationFiled: January 15, 2013Publication date: December 4, 2014Applicant: NITTO DENKO CORPORATIONInventors: Kazutaka Hara, Naoki Kurata, Tomonari Naito, Taiki Sueyoshi, Satoru Suzuki, Koji Maruyama
-
Patent number: 8586186Abstract: A pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive containing an acrylic polymer composition containing an acrylic polymer as a main component and a tackifier containing a tackifying resin as a main component, wherein reflection rate and attached amount in the fogging test in accordance with German Industrial Standard DIN 75201 are 70% or more and 2.0 mg or less, respectively. In the acrylic pressure-sensitive adhesive which forms the pressure-sensitive adhesive layer, a ratio of components having a molecular weight of 300 or less is preferably 4.2% by weight or less based on the total amount of solid matter of the acrylic pressure-sensitive adhesive. Furthermore, in the tackifying resin in the tackifier, a ratio of components having a molecular weight of 300 or less is suitably 4.2% by weight or less based on the total amount of solid matter of the tackifying resin.Type: GrantFiled: October 26, 2010Date of Patent: November 19, 2013Assignee: Nitto Denko CorporationInventors: Tomonari Naito, Michio Umeda, Akiko Takahashi
-
OIL AND HEAT RESISTANT ADHESIVE SHEET, BONDING METHOD, AND OIL AND HEAT RESISTANT ADHESIVE STRUCTURE
Publication number: 20130224475Abstract: An oil and heat resistant pressure-sensitive adhesive sheet includes a substrate containing a fluororesin, and a pressure-sensitive adhesive layer laminated on at least one surface of the substrate. The one surface of the substrate is subjected to a surface roughening treatment and/or a primer treatment, and the pressure-sensitive adhesive layer is formed from an aqueous dispersion type oil-resistant pressure-sensitive adhesive composition containing an aqueous dispersion polymer and inorganic particles.Type: ApplicationFiled: November 8, 2011Publication date: August 29, 2013Applicant: NITTO DENKO CORPORATIONInventors: Kenichi Tagawa, Tomonari Naito, Azusa Iseki, Asami Kubo, Yoshinari Takayama -
Publication number: 20130210993Abstract: An aqueous dispersion type oil-resistant pressure-sensitive adhesive composition contains an aqueous dispersion polymer and inorganic particles. The content ratio of the inorganic particles with respect to 100 parts by mass of the aqueous dispersion polymer is 3 to 90 parts by mass.Type: ApplicationFiled: November 8, 2011Publication date: August 15, 2013Applicant: NITTO DENKO CORPORATIONInventors: Tomonari Naito, Azusa Iseki, Asami Kubo, Yoshinari Takayama, Kenichi Tagawa
-
Publication number: 20130052460Abstract: A primer composition contains an acrylic polymer obtained by polymerizing a monomer component which contains, as the primary component, an alkyl (meth)acrylate containing an alkyl group having 1 to 30 carbon atoms, and particles.Type: ApplicationFiled: May 17, 2011Publication date: February 28, 2013Applicant: NITTO DENKO CORPORATIONInventors: Azusa Iseki, Tomonari Naito, Asami Kubo, Mitsuyoshi Shirai
-
Publication number: 20130022734Abstract: In the method for producing a medical pressure-sensitive adhesive tape or sheet of the invention, a water dispersion-type copolymer solution having a specific composition is used. Therefore, the problem caused by high thixotropy can be eliminated and a pressure-sensitive adhesive layer can be relatively easily formed on a porous substrate by a direct method. In addition, when the medical pressure-sensitive adhesive tape or sheet obtained by the method of the invention is attached to the skin surface, skin adhesion and tube fixing are excellent and at the same time, irritation to skin is low.Type: ApplicationFiled: July 20, 2012Publication date: January 24, 2013Applicant: NITTO DENKO CORPORATIONInventors: Tatsuya MURATA, Noriyuki KIKUTA, Atsushi HAMADA, Tomonari NAITO, Nobuaki MARUOKA
-
Patent number: 8299156Abstract: A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 ?g/m3 and a diffusing amount of toluene is 10 ?g/g or less. As the tackifying resin-containing emulsion, a tackifying resin-containing emulsion prepared using substantially no organic solvents or a tackifying resin-containing emulsion prepared using a material other than aromatic hydrocarbon-based organic solvents can be suitably employed.Type: GrantFiled: June 4, 2010Date of Patent: October 30, 2012Assignee: Nitto Denko CorporationInventors: Akiko Takahashi, Hiroshi Wada, Tomonari Naito
-
Publication number: 20120252964Abstract: An aqueous dispersion pressure-sensitive adhesive composition contains an aqueous dispersion polymer and alkali silicate. The mixing ratio of the alkali silicate is 0.01 to 10 parts by weight with respect to 100 parts by weight of the aqueous dispersion polymer.Type: ApplicationFiled: December 1, 2010Publication date: October 4, 2012Applicant: NITTO DENKO CORPORATIONInventors: Tomonari Naito, Azusa Iseki, Asami Kubo
-
Patent number: 8227533Abstract: A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 ?g/m3 and a diffusing amount of toluene is 10 ?g/g or less. As the tackifying resin-containing emulsion, a tackifying resin-containing emulsion prepared using substantially no organic solvents or a tackifying resin-containing emulsion prepared using a material other than aromatic hydrocarbon-based organic solvents can be suitably employed.Type: GrantFiled: June 3, 2010Date of Patent: July 24, 2012Assignee: Nitto Denko CorporationInventors: Akiko Takahashi, Hiroshi Wada, Tomonari Naito
-
Patent number: 8022125Abstract: A pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive containing an acrylic polymer composition containing an acrylic polymer as a main component and a tackifier containing a tackifying resin as a main component, wherein reflection rate and attached amount in the fogging test in accordance with German Industrial Standard DIN 75201 are 70% or more and 2.0 mg or less, respectively. In the acrylic pressure-sensitive adhesive which forms the pressure-sensitive adhesive layer, a ratio of components having a molecular weight of 300 or less is preferably 4.2% by weight or less based on the total amount of solid matter of the acrylic pressure-sensitive adhesive. Furthermore, in the tackifying resin in the tackifier, a ratio of components having a molecular weight of 300 or less is suitably 4.2% by weight or less based on the total amount of solid matter of the tackifying resin.Type: GrantFiled: November 30, 2005Date of Patent: September 20, 2011Assignee: Nitto Denko CorporationInventors: Tomonari Naito, Michio Umeda, Akiko Takahashi
-
Patent number: 7897683Abstract: The present invention provides a medical adhesive and a medical adhesive tape or sheet superior in the fixing performance, particularly perspiration-resistant fixing, which shows low skin irritation and suitable adhesive strength. The present invention provides a medical adhesive containing a water-dispersed copolymer obtained by copolymerizing 100 parts by weight of a monomer mixture containing (meth)acrylic acid alkyl ester and 0.Type: GrantFiled: May 21, 2007Date of Patent: March 1, 2011Assignee: Nitto Denko CorporationInventors: Atsushi Hamada, Tomonari Naito, Namiko Murayama, Miki Funahashi, Jun Ishikura
-
Publication number: 20110039988Abstract: A pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive containing an acrylic polymer composition containing an acrylic polymer as a main component and a tackifier containing a tackifying resin as a main component, wherein reflection rate and attached amount in the fogging test in accordance with German Industrial Standard DIN 75201 are 70% or more and 2.0 mg or less, respectively. In the acrylic pressure-sensitive adhesive which forms the pressure-sensitive adhesive layer, a ratio of components having a molecular weight of 300 or less is preferably 4.2% by weight or less based on the total amount of solid matter of the acrylic pressure-sensitive adhesive. Furthermore, in the tackifying resin in the tackifier, a ratio of components having a molecular weight of 300 or less is suitably 4.2% by weight or less based on the total amount of solid matter of the tackifying resin.Type: ApplicationFiled: October 26, 2010Publication date: February 17, 2011Applicant: NITTO DENKO CORPORATIONInventors: Tomonari NAITO, Michio UMEDA, Akiko TAKAHASHI
-
Publication number: 20110025963Abstract: A laminated optical film according to an embodiment of the present invention includes a polarizing plate and a retardation layer formed of a water dispersible pressure-sensitive adhesive composition containing an inorganic laminar compound.Type: ApplicationFiled: July 23, 2010Publication date: February 3, 2011Applicant: NITTO DENKO CORPORATIONInventors: Junichi Nagase, Tomonari Naito, Mika Okada
-
Patent number: 7867610Abstract: A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 ?g/m3 and a diffusing amount of toluene is 10 ?g/g or less. As the tackifying resin-containing emulsion, a tackifying resin-containing emulsion prepared using substantially no organic solvents or a tackifying resin-containing emulsion prepared using a material other than aromatic hydrocarbon-based organic solvents can be suitably employed.Type: GrantFiled: October 18, 2005Date of Patent: January 11, 2011Assignee: Nitto Denko CorporationInventors: Akiko Takahashi, Hiroshi Wada, Tomonari Naito
-
Publication number: 20100310857Abstract: An inorganic-polymer composite material includes a hydrophilic inorganic compound that has a maximum length of 1 to 1000 nm and is unevenly distributed on the surface of a polymer particle having an average particle size of 0.05 to 100 ?m.Type: ApplicationFiled: February 5, 2009Publication date: December 9, 2010Applicant: Nitto Denko CorporationInventors: Tomonari Naito, Mika Okada, Asami Kubo
-
Publication number: 20100247833Abstract: A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 ?g/m3 and a diffusing amount of toluene is 10 ?g/g or less. As the tackifying resin-containing emulsion, a tackifying resin-containing emulsion prepared using substantially no organic solvents or a tackifying resin-containing emulsion prepared using a material other than aromatic hydrocarbon-based organic solvents can be suitably employed.Type: ApplicationFiled: June 4, 2010Publication date: September 30, 2010Applicant: NITTO DENKO CORPORATIONInventors: Akiko Takahashi, Hiroshi Wada, Tomonari Naito