Patents by Inventor Komaharu Matsui
Komaharu Matsui 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: 6844112Abstract: Sheets for protecting paint films of automobiles which can adhere with no wrinkle to paint films of automobiles and cover the same, even in curved surface portions, at a high reliability while achieving excellent protection function to colliding matters, etc. (i.e., the inherent function of protecting sheets) and being easily peeled and removed after completion of the aimed protection, thus preventing the permeation of rainwater, etc. and protecting the paint films of automobiles from being damaged by denaturation, etc. Such a sheet for protecting paint films of automobiles comprises a support (1) comprising a polymer film (12) having a nonwoven fabric (11) laminated on one or both surfaces thereof, and a pressure-sensitive adhesive layer (2) formed on one surface of the polymer film, wherein the non-woven fabric has a basic weight of 5 to 100 g/m2.Type: GrantFiled: May 14, 1999Date of Patent: January 18, 2005Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Tsuyoshi Inoue, Keiji Hayashi, Kenji Sano, Akira Wakabayashi, Kenichi Shibata, Shuuji Sugimoto, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
-
Publication number: 20030190463Abstract: Sheets for protecting paint films of automobiles which can adhere with no wrinkle to paint films of automobiles and cover the same, even in curved surface portions, at a high reliability while achieving excellent protection function to colliding matters, etc. (i.e., the inherent function of protecting sheets) and being easily peeled and removed after completion of the aimed protection, thus preventing the permeation of rainwater, etc. and protecting the paint films of automobiles from being damaged by denaturation, etc.Type: ApplicationFiled: May 14, 1999Publication date: October 9, 2003Inventors: TSUYOSHI INOUE, KEIJI HAYASHI, KENJI SANO, AKIRA WAKABAYASHI, KENICHI SHIBATA, SHUUJI SUGIMOTO, KOMAHARU MATSUI, TAKESHI EDA, HIROSHI UEDA
-
Patent number: 6395390Abstract: A sheet for protecting paint films of automobiles which can prevent the paint film of automobiles from suffering from damages such as discoloration and denaturation even if rainwater or washer penetrates into the gap between the adhesive cover and the paint film while achieving excellent protection function to suspended matters, colliding matters, etc. inherent to protecting sheets and being easily peeled off and removed after completion of the desired protection. The sheet for protecting paint films of automobiles comprises a pressure-sensitive adhesive layer having a roughened surface provided on a substrate made of fiber sheet. Even when rainwater, washer, etc.Type: GrantFiled: September 28, 1999Date of Patent: May 28, 2002Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Tsuyoshi Inoue, Kenichi Shibata, Kenji Sano, Akira Wakabayashi, Keiji Hayashi, Shuuji Sugimoto, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
-
Patent number: 6358600Abstract: A sheet for protecting a paint film which does not deteriorate or discolor the paint film even when the sheet is adhered to protect the paint film under the condition containing acidic rainwater or detergent and can maintain the adhered state over an extended-period of time without peeling off is disclosed. The sheet for protecting a paint film comprises a porous substrate and a pressure-sensitive adhesive layer formed on one surface of the porous substrate. The sheet has an air permeability in a direction of sheet thickness of 20,000 sec/100 cc or more and a moisture permeability in a direction of sheet thickness of 2,000 g/m2·24 hr or more. The sheet for protecting a paint film further comprises a porous substrate and a pressure-sensitive adhesive layer formed on one surface of the porous substrate, wherein the porous substrate has an ultraviolet transmission of 10% or less at a wavelength of from 190 to 370 nm.Type: GrantFiled: June 11, 1998Date of Patent: March 19, 2002Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Keiji Hayashi, Tsuyoshi Inoue, Kenichi Shibata, Kenji Sano, Mitsuyoshi Shirai, Mitsuru Horada, Hiroshi Sugawa, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
-
Publication number: 20020009587Abstract: A sheet for protecting a paint film, the sheet comprising a substrate and formed on one side thereof a rubber-based pressure-sensitive adhesive layer which comprises a rubbery polymer and incorporated therein a copolymer of at least one aromatic compound with at least one terpene compound or aliphatic hydrocarbon compound. The sheet can be efficiently applied and satisfactorily adhered to a paint film and retain the satisfactorily adherent state over long. After accomplishment of the protection, the sheet can be easily peeled off and is less apt to foul the paint film even when the paint film is of the type susceptible to fouling upon protective sheet removal. No cleaning treatment is hence necessary.Type: ApplicationFiled: June 6, 2001Publication date: January 24, 2002Applicant: NITTO DENKO CORPORATION and KANSAI PAINT CO., LTD.Inventors: Tsuyoshi Inoue, Kenji Sano, Yoshiki Kobayashi, Kenichi Shibata, Keiji Hayashi, Mitsuru Horada, Komaharu Matsui, Yu Akaki, Takeshi Eda, Hiroshi Ueda
-
Patent number: 6335090Abstract: A pressure-sensitive adhesive comprising 100 parts by weight of an isobutylene polymer and 0.001 to 5 parts by weight of at least one release control agent selected from the group consisting of an alcohol having a molecular weight of 90 to 300 and an oxygen atom content of 8.5% or more or a derivative thereof and a carboxylic acid having a molecular weight of 70 to 400 and an oxygen atom content of 11% or more or a derivative thereof; and a surface protecting material having a pressure-sensitive adhesive layer comprising the adhesive. The adhesive has well-balanced characteristics in initial adhesion, retention of initial adhesion, and weather resistance.Type: GrantFiled: March 29, 1999Date of Patent: January 1, 2002Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Mitsuyoshi Shirai, Keiji Hayashi, Kenichi Shibata, Mitsuru Horada, Tsuyoshi Inoue, Kenji Sano, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
-
Patent number: 6329049Abstract: A pressure-sensitive adhesive comprising 100 parts by weight of an isobutylene polymer having been masticated in an organic solvent with a radical generator and 0.001 to 5 parts by weight of at least one release control agent selected from the group consisting of an alcohol having a molecular weight of 90 to 300 and an oxygen atom content of 8.5% or more or a derivative thereof and a carboxylic acid having a molecular weight of 70 to 400 and an oxygen atom content of 11% or more or a derivative thereof; and a surface protecting material having a pressure-sensitive adhesive layer comprising the adhesive. The adhesive has well-balanced characteristics in initial adhesion, retention of initial adhesion, and weather resistance.Type: GrantFiled: March 29, 1999Date of Patent: December 11, 2001Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Mitsuyoshi Shirai, Isamu Teranishi, Hideki Mitsuda, Akira Taguchi, Kenji Sano, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
-
Publication number: 20010020515Abstract: A sheet for protecting a paint film, the sheet comprising a substrate and formed on one side thereof a rubber-based pressure-sensitive adhesive layer which has, on a side opposite the substrate side, a modified surface layer having a thickness of 100 nm or smaller and having a higher functional group concentration than the inner parts of the adhesive layer; and a process for producing the sheet which comprises subjecting a rubber-based pressure-sensitive adhesive layer formed on a substrate to a treatment for generating functional groups on the surface of the adhesive layer. The sheet, even when applied to a poorly bondable paint film apt to cause adhesion failures due to bleeding, etc.Type: ApplicationFiled: February 28, 2001Publication date: September 13, 2001Inventors: Kenichi Shibata, Kooki Ooyama, Kenji Sano, Masayoshi Natsume, Yoshiki Kobayashi, Keiji Hayashi, Komaharu Matsui, Yu Akaki, Takeshi Eda, Hiroshi Ueda
-
Patent number: 6083613Abstract: A sheet for protecting a paint film is disclosed, which does not cause deterioration or discoloration the paint film even when the sheet is adhered to protect the paint film under the condition containing water or water vapor over a long period of time and thus can maintain the adhered state without peeled off the sheet. The sheet for protecting a paint film comprises a multi-layer substrate comprising a water or water vapor barrier layer as a surface layer and a water or water vapor-permeable layer as a back, and a pressure-sensitive adhesive layer formed on the water or water vapor-permeable layer.Type: GrantFiled: May 28, 1998Date of Patent: July 4, 2000Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Keiji Hayashi, Mitsuyoshi Shirai, Kenji Sano, Tsuyoshi Inoue, Kenichi Shibata, Mitsuru Horada, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
-
Patent number: 6037054Abstract: A sheet for protecting paint film comprising a support having formed thereon a rubber adhesive layer comprising an isobutylene polymer having a degree of dispersion of from 1 to 2.3 and a weight average molecular weight of 300,000 to 600,000 (the domain A in the FIGURE) as the base polymer.The paint film protecting sheet has the compatibility of the prevention of the occurrence of a microdeformation and a good peelability. That is, when an article such as automobiles having a paint film applied with the protecting sheet is placed outdoors for a long period of time at high temperature, the paint film is hard to deform and the sheet can be easily peeled even after adhering for a long period of time.Type: GrantFiled: October 10, 1997Date of Patent: March 14, 2000Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Mitsuyoshi Shirai, Tomohide Bamba, Keiji Hayashi, Isao Hirose, Kenji Sano, Toshiyuki Umehara, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
-
Patent number: 6030702Abstract: A sheet for protecting paint films of automobiles for adhering to the incompletely cured paint films of automobiles comprising two pack urethane paint, the sheet comprising a support and a pressure-sensitive adhesive layer formed thereon, wherein the sheet has a Young's modulus E of at least 75 N/mm.sup.2 and a coefficient of flexural stress k represented by the formula k=Eh.sup.3 wherein h is a thickness of the support, of 0.035 or less. The protective sheet can uniformly protect the paint films and easily be peeled and removed therefrom without causing environmental problems and adhesive remaining of the pressure-sensitive adhesive layer. Even when the sheet is adhered to incompletely cured paint films of automobiles and they are allowed to stand for a long period of time under an outside high temperature in summer, the sheet does not cause the deformation of the paint film and the microdeformations by the deformation of the paint film at the edge portion of the pressure-sensitive adhesive layer.Type: GrantFiled: October 10, 1996Date of Patent: February 29, 2000Assignees: Nitto Denki Corporation, Kansai Paint Co., Ltd.Inventors: Komaharu Matsui, Takeshi Eda, Hiroshi Ueda, Mitsuyoshi Shirai, Kenji Sano, Mitsuru Horada, Naoyuki Nishiyama
-
Patent number: 5882775Abstract: An automobile paint film-protective sheet comprising a substrate having formed on one side thereof a rubber-based pressure-sensitive adhesive having a dynamic modulus of from 2.times.10.sup.5 to 7.times.10.sup.6 dyne/cm.sup.2 at 60.degree. C.Type: GrantFiled: August 1, 1997Date of Patent: March 16, 1999Assignees: Kansai Paint Co., Ltd., Nitto Denko CorporationInventors: Komaharu Matsui, Mitrso Wakimoto, Takeshi Eda, Tadayoshi Tatsuno, Yutaka Kuwabara, Kenichi Shibata
-
Patent number: 5810960Abstract: An adhesive-backed sheet for protecting painted surfaces comprising a supporting substrate having formed thereon a rubber-based pressure-sensitive adhesive layer compounded with a fatty acid glycerol ester.Type: GrantFiled: October 18, 1996Date of Patent: September 22, 1998Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Komaharu Matsui, Mitsuo Wakimoto, Takeshi Eda, Tadayoshi Tatsuno, Tsuyoshi Inoue, Kenichi Shibata, Yutaka Kuwabara, Tatsuo Wada
-
Patent number: 5747132Abstract: An automobile paint film-protective sheet comprising a substrate having formed on one side thereof a rubber-based pressure-sensitive adhesive having a dynamic modulus of from 2.times.10.sup.5 to 7.times.10.sup.6 dyne/cm.sup.2 at 60.degree. C.Type: GrantFiled: January 3, 1995Date of Patent: May 5, 1998Assignees: Kansai Paint Co., Ltd., Nitto Denko CorporationInventors: Komaharu Matsui, Mitrso Wakimoto, Takeshi Eda, Tadayoshi Tatsuno, Yutaka Kuwabara, Kenichi Shibata
-
Patent number: 5612135Abstract: A paint film-protective sheet comprising a supporting substrate having formed thereon a rubber-based pressure-sensitive adhesive layer containing a fatty acid glycerol ester and an antifungal agent.Type: GrantFiled: March 1, 1995Date of Patent: March 18, 1997Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Komaharu Matsui, Takeshi Eda, Mitsuo Wakimoto, Kenichi Shibata, Toshitaka Suzuki, Mitsuyoshi Shirai, Kenichi Okada, Tsuyoshi Inoue, Hiroyoshi Onishi, Taiki Kusaka
-
Patent number: 5601917Abstract: A paint film-protective sheet comprising a supporting substrate having formed thereon a rubber-based pressure-sensitive layer comprising a rubber-based polymer having a low polarity and which does not contain unsaturated bonds or contains a small amount of unsaturated bonds, and a high-polar additive. The paint film-protective sheet can adhere even to a paint film which is liable to cause a poor adhesion by bleeding, etc., without need of applying a cleaning treatment, can maintain the good adhered state over a long period of time, and can be easily peeled cleanly even after adhering for a long period of time.Type: GrantFiled: October 10, 1995Date of Patent: February 11, 1997Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Komaharu Matsui, Takeshi Eda, Hiroshi Ueda, Kenichi Shibata, Toshitaka Suzuki, Hiroyoshi Onishi, Kenichi Okada, Tsuyoshi Inoue, Mitsuru Horada, Kenji Sano, Keiji Hayashi
-
Patent number: 5294278Abstract: A process for applying a protective self-adhesive film onto a coat-finished product having an object unnecessary to be protected by the protective self-adhesive film, which process comprises (1) the following steps: applying a perforated self-adhesive film (a) having a perforation onto the surface of the coating of the coat-finished product so that an area occupied by the object may be positioned within the perforation, applying a protective self-adhesive film onto the object, the perforated self-adhesive film (a) and such a part of the coating of the coat-finished product as not to be covered with the perforated self-adhesive film (a), and removing an unnecessary portion of the protective self-adhesive film over the perforation; or (2) the following steps: applying the protective self-adhesive film onto the object and a coating of the coat-finished product, cutting out such an unnecessary portion of the protective self-adhesive film as positioned over the area occupied by the object by use of a cylindrical cType: GrantFiled: February 23, 1993Date of Patent: March 15, 1994Assignee: Kansai Paint Co., Ltd.Inventors: Komaharu Matsui, Takeshi Eda, Mitsuo Wakimoto
-
Patent number: 5011733Abstract: A process for coating a metallic substrate, characterized by applying on a metallic substrate a electrocoating paint, applying thereon a barrier coat comprising a film-forming thermoplastic resin other than a modified polyolefin resin and capable of forming a barrier coat film having a static glass transition temperature of 0.degree. to -75.degree. C., optionally applying on said barrier coat an intermediate coating paint and then applying thereon a top coating paint.Type: GrantFiled: January 9, 1989Date of Patent: April 30, 1991Assignee: Kansai Paint Co., Ltd.Inventors: Tadayoshi Hiraki, Osamu Iwase, Hirosi Oosumimoto, Shinji Sugiura, Ichiro Tabushi, Masafumi Kume, Takashi Udagawa, Komaharu Matsui, Yasuhiro Fujii
-
Patent number: 4983454Abstract: A process for coating a metallic substrate, characterized by applying on a metallic substrate an electrocoating paint, applying thereon a barrier coat comprising a film-forming thermoplastic resin other than a modified polyolefin resin and capable of forming a barrier coat film having a static glass transition temperature of 0.degree. to -75.degree. C., optionally applying on said barrier coat an intermediate coating paint and then applying thereon a top coating paint.Type: GrantFiled: January 9, 1989Date of Patent: January 8, 1991Assignee: Kansai Paint Co., Ltd.Inventors: Tadayoshi Hiraki, Osamu Iwase, Hirosi Oosumimoto, Shinji Sugiura, Ichiro Tabushi, Masafumi Kume, Takashi Udagawa, Komaharu Matsui, Yasuhiro Fujii
-
Patent number: RE40723Abstract: An automobile paint film-protective sheet comprising a substrate having formed on one side thereof a rubber-based pressure-sensitive adhesive having a dynamic modulus of from 2×105 to 7×106 dyne/cm2 at 60° C.Type: GrantFiled: October 19, 2005Date of Patent: June 9, 2009Assignees: Kansai Paint Co. Ltd., Nitto Denko CorporationInventors: Komaharu Matsui, Mitsuo Wakimoto, Takeshi Eda, Tadayoshi Tatsuno, Yutaka Kuwabara, Kenichi Shibata