Patents by Inventor Kenji Iwashita
Kenji Iwashita 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).
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Publication number: 20240087916Abstract: A vacuum processing apparatus includes a decompressable process container; a supply port configured to supply, to the process container, an ionic liquid that absorbs an oxidizing gas; and a discharge port configured to discharge the ionic liquid supplied to the process container. A recess is provided at a joint portion between members constituting the process container. The supply port is configured to supply the ionic liquid to the recess, and the discharge port is configured to discharge the ionic liquid supplied to the recess.Type: ApplicationFiled: November 1, 2023Publication date: March 14, 2024Inventors: Hirokazu UEDA, Yoji IIZUKA, Mitsuaki IWASHITA, Antonio ROTONDARO, Dipak ARYAL, Takeo NAKANO, Ryuichi ASAKO, Kenji SEKIGUCHI, Koji AKIYAMA, Naoki UMESHITA, Takashi HAYAKAWA
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Patent number: 11846047Abstract: Provided are a cloth and a protective product, which allow for any color appearance and have excellent protection performance against electric arcs. The cloth has a woven fabric structure, wherein a front-surface spun yarn containing an infrared absorber- and/or electrically conductive agent-containing fiber and not containing carbon is located on a front surface, while a back-surface spun yarn containing a carbon-containing fiber is located on a back surface, and the cloth has an ATPV value of 8.0 cal/cm2 or more in Arc Resistance Test ASTM F1959-1999.Type: GrantFiled: December 10, 2019Date of Patent: December 19, 2023Assignee: TEIJIN LIMITEDInventors: Kengo Tanaka, Kenji Iwashita, Hiroki Shimada, Atsushi Kitamura
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Publication number: 20220259800Abstract: An object of the present invention is to provide a dyed fabric and a textile product made thereof, as well as a dyeing method, which achieve color uniformity of a meta-type wholly aromatic polyamide fiber, a para-type wholly aromatic polyamide fiber and a polyester fiber, even in the case of a fabric containing a meta-type- and para-type-wholly aromatic polyamide fibers and a polyester fiber which are difficult to dye. The present invention relates to a dyed fabric dyed after being shaped into a fabric, characterized in that the fabric includes a meta-type wholly aromatic polyamide fiber, a para-type wholly aromatic polyamide fiber and a polyester fiber and the fabric is a fabric dyed with a cationic dyestuff and a disperse dyestuff, and in that the afterflame time and afterglow time defined in JISL1091A-1 are 1 second or less.Type: ApplicationFiled: June 26, 2020Publication date: August 18, 2022Applicant: TEIJIN LIMITEDInventors: Hiroki SHIMADA, Kenji IWASHITA
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Publication number: 20220010467Abstract: Provided are a cloth and a protective product, which allow for any color appearance and have excellent protection performance against electric arcs. The cloth has a woven fabric structure, wherein a front-surface spun yarn containing an infrared absorber- and/or electrically conductive agent-containing fiber and not containing carbon is located on a front surface, while a back-surface spun yarn containing a carbon-containing fiber is located on a back surface, and the cloth has an ATPV value of 8.0 cal/cm2 or more in Arc Resistance Test ASTM F1959-1999.Type: ApplicationFiled: December 10, 2019Publication date: January 13, 2022Applicant: TEIJIN LIMITEDInventors: Kengo TANAKA, Kenji IWASHITA, Hiroki SHIMADA, Atsushi KITAMURA
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Publication number: 20210363668Abstract: A task is to provide a cloth which is advantageous in that the cloth has extremely excellent flame retardancy, and further has excellent washing shrinkage resistance and excellent hand as well as excellent antistatic properties, preferably in that the whole of the cloth can be uniformly dyed, and a fiber product, and the task is achieved by obtaining a cloth using a spun yarn which comprises a meta-type wholly aromatic polyamide fiber, a modacrylic fiber, and a conductive fiber.Type: ApplicationFiled: March 25, 2019Publication date: November 25, 2021Applicant: TEIJIN LIMITEDInventors: Hiroki SHIMADA, Kenji IWASHITA, Kiho NABETANI
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Patent number: 11160320Abstract: The invention addresses the problem of providing a cloth, a multilayered cloth, and a textile product, which have flame retardancy and heat insulation and develop a relief structure when exposed to flame or heat. As a means for resolution, a cloth characterized in that a yarn A having a high thermal shrinkage rate and a yarn B having a low thermal shrinkage rate are alternately arranged in the warp direction or weft direction is obtained, then, as necessary, a multilayered cloth is obtained using the cloth as an intermediate layer, and further, as necessary, a textile product is formed using the multilayered cloth.Type: GrantFiled: March 29, 2017Date of Patent: November 2, 2021Assignee: TEIJIN LIMITEDInventors: Kiho Nakano, Kenji Iwashita
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Patent number: 11118287Abstract: The invention addresses the problem of providing a cloth and a protective product that have lightweight properties, wearing comfort, and further protection performance against electric arcs. A means for resolution is a cloth including a spun yarn containing a meta-type wholly aromatic polyamide fiber, wherein the cloth has a lightness index L-value of 25 or less.Type: GrantFiled: November 11, 2016Date of Patent: September 14, 2021Assignee: TEIJIN LIMITEDInventors: Hiroki Shimada, Kenji Iwashita
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Patent number: 11078608Abstract: The invention addresses the problem of providing a cloth that is excellent not only in flame retardancy and antistatic properties but also in appearance quality and preferably also has protection performance against electric arcs, a method for producing the same, and a textile product. A means for resolution is a cloth including a meta-type wholly aromatic polyamide fiber and an electrically conductive fiber, wherein both the meta-type wholly aromatic polyamide fiber and the electrically conductive fiber are colored.Type: GrantFiled: October 25, 2017Date of Patent: August 3, 2021Assignee: TEIJIN LIMITEDInventors: Kengo Tanaka, Hiroki Shimada, Kenji Iwashita, Kenji Yoshihara
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Publication number: 20200063299Abstract: The invention addresses the problem of providing a cloth that is excellent not only in flame retardancy and antistatic properties but also in appearance quality and preferably also has protection performance against electric arcs, a method for producing the same, and a textile product. A means for resolution is a cloth including a meta-type wholly aromatic polyamide fiber and an electrically conductive fiber, wherein both the meta-type wholly aromatic polyamide fiber and the electrically conductive fiber are colored.Type: ApplicationFiled: October 25, 2017Publication date: February 27, 2020Applicant: TEIJIN LIMITEDInventors: Kengo TANAKA, Hiroki SHIMADA, Kenji IWASHITA, Kenji YOSHIHARA
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Publication number: 20190226122Abstract: A problem of the invention is to provide a colored organic fiber that has a deep color and excellent flame retardancy, a cloth and garments each composed of the foregoing organic fiber, and a method for producing a cloth. To solve this problem, a colored organic fiber having a content of a carrier agent of 1.8% by mass or less relative to the fiber mass is provided. A cloth or garments are obtained, if desired.Type: ApplicationFiled: April 3, 2019Publication date: July 25, 2019Applicant: TEIJIN LIMITEDInventors: Hiroki SHIMADA, Saori KURODA, Kenji IWASHITA
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Publication number: 20190029335Abstract: The invention addresses the problem of providing a cloth, a multilayered cloth, and a textile product, which have flame retardancy and heat insulation and develop a relief structure when exposed to flame or heat. As a means for resolution, a cloth characterized in that a yarn A having a high thermal shrinkage rate and a yarn B having a low thermal shrinkage rate are alternately arranged in the warp direction or weft direction is obtained, then, as necessary, a multilayered cloth is obtained using the cloth as an intermediate layer, and further, as necessary, a textile product is formed using the multilayered cloth.Type: ApplicationFiled: March 29, 2017Publication date: January 31, 2019Applicant: Teijin LimitedInventors: Kiho NAKANO, Kenji IWASHITA
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Publication number: 20180347079Abstract: The invention addresses the problem of providing a cloth and a protective product that have lightweight properties, wearing comfort, and further protection performance against electric arcs. A means for resolution is a cloth including a spun yarn containing a meta-type wholly aromatic polyamide fiber, wherein the cloth has a lightness index L-value of 25 or less.Type: ApplicationFiled: November 11, 2016Publication date: December 6, 2018Applicant: TEIJIN LIMITEDInventors: Hiroki SHIMADA, Kenji IWASHITA
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Patent number: 9970133Abstract: Provided are a woven fabric having excellent lightweightness and water resistance and a garment using the woven fabric. The woven fabric has an areal weight of 100 g/m2 or less and a cover factor of 1,800 or more. One of the warp and weft of the woven fabric contains a false-twist crimped yarn, and the other contains a non-crimped yarn.Type: GrantFiled: November 14, 2011Date of Patent: May 15, 2018Assignee: TEIJIN FRONTIER CO., LTD.Inventors: Akio Ukuma, Kenji Iwashita
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Publication number: 20180080153Abstract: An object is to provide a cloth tape having flame retardancy and a fiber product, and means for achieving the object is a cloth tape formed from an organic fiber, which has an afterflame time of 2.0 seconds or less, as measured in the flammability prescribed in JIS L1091-1999 A-4 method (12-second heating method).Type: ApplicationFiled: January 24, 2017Publication date: March 22, 2018Applicant: TEIJIN LIMITEDInventors: Kenji IWASHITA, Kiho NAKANO
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Publication number: 20170292210Abstract: In order to provide a fabric and a fiber product, which have hygroscopicity and durability as well as flame retardancy, a hydrophilizing agent is added to a fabric containing aramid fibers.Type: ApplicationFiled: August 26, 2015Publication date: October 12, 2017Applicant: TEIJIN LIMITEDInventor: Kenji IWASHITA
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Publication number: 20170037543Abstract: A problem of the invention is to provide a colored organic fiber that has a deep color and excellent flame retardancy, a cloth and garments each composed of the foregoing organic fiber, and a method for producing a cloth. To solve this problem, a colored organic fiber having a content of a carrier agent of 1.8% by mass or less relative to the fiber mass is provided. A cloth or garments are obtained, if desired.Type: ApplicationFiled: April 6, 2015Publication date: February 9, 2017Applicant: TEIJIN LIMITEDInventors: Hiroki SHIMADA, Saori KURODA, Kenji IWASHITA
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Patent number: 9127380Abstract: A water-repellent woven fabric having excellent water repellency, which is friendly to the environment, and a garment made of the water-repellent woven fabric are provided. A composite yarn containing a false-twist crimped textured yarn having an S-direction torque and a false-twist crimped textured yarn having a Z-direction torque is arranged for a warp or a weft to obtain a fabric, and a fluorine-based water repellent having a total concentration of perfluorooctanoic acid and perfluorooctanesulfonic acid of 0 to 5 ng/g is then adhered to the woven fabric.Type: GrantFiled: November 21, 2011Date of Patent: September 8, 2015Assignee: TEIJIN FRONTIER CO., LTD.Inventor: Kenji Iwashita
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Publication number: 20130239289Abstract: A water-repellent woven fabric having excellent water repellency, which is friendly to the environment, and a garment made of the water-repellent woven fabric are provided. A composite yarn containing a false-twist crimped textured yarn having an S-direction torque and a false-twist crimped textured yarn having a Z-direction torque is arranged for a warp or a weft to obtain a fabric, and a fluorine-based water repellent having a total concentration of perfluorooctanoic acid and perfluorooctanesulfonic acid of 0 to 5 ng/g is then adhered to the woven fabric.Type: ApplicationFiled: December 21, 2011Publication date: September 19, 2013Applicant: TEIJIN FRONTIER CO., LTD.Inventor: Kenji Iwashita
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Publication number: 20130177753Abstract: Provided are a woven fabric having excellent lightweightness and water resistance and a garment using the woven fabric. The woven fabric has an areal weight of 100 g/m2 or less and a cover factor of 1,800 or more. One of the warp and weft of the woven fabric contains a false-twist crimped yarn, and the other contains a non-crimped yarn.Type: ApplicationFiled: November 14, 2011Publication date: July 11, 2013Applicant: TEIJIN FRONTIER CO., LTD.Inventors: Akio Ukuma, Kenji Iwashita
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Patent number: 8108949Abstract: Waterproof moisture-permeable fabric for clothing which includes, on one side of a polyester fabric A, a waterproof moisture-permeable layer B including a colorless transparent polyester film stacked, and a white or gray resin C partially stacked, and clothing including the waterproof moisture-permeable fabric. Preferably, a moisture-permeable polymer resin D containing inorganic fine particles is stacked on the waterproof moisture-permeable layer B, and the white or gray resin C is partially stacked thereon.Type: GrantFiled: October 24, 2007Date of Patent: February 7, 2012Assignee: Teijin Fibers LimitedInventors: Kenji Iwashita, Hitoshi Itai, Motoki Yamazawa