Patents by Inventor Atsushi Kuwabara
Atsushi Kuwabara 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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Patent number: 10640886Abstract: A fiber-containing crystal includes a crystal body which is a crystal of a biological substance and a plurality of fibers at least partially incorporated in the crystal body; and a fiber-containing crystal includes a crystal body which is an easy-disintegrating crystal and a plurality of fibers at least partially incorporated in the crystal body.Type: GrantFiled: September 28, 2016Date of Patent: May 5, 2020Assignee: Toray Industries, Inc.Inventors: Iori Nakabayashi, Hiroshi Tsuchikura, Atsushi Kuwabara, Hiroaki Adachi
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Publication number: 20190177877Abstract: A fiber-containing crystal includes a crystal body which is a crystal of a biological substance and a plurality of fibers at least partially incorporated in the crystal body; and a fiber-containing crystal includes a crystal body which is an easy-disintegrating crystal and a plurality of fibers at least partially incorporated in the crystal body.Type: ApplicationFiled: September 28, 2016Publication date: June 13, 2019Inventors: Iori Nakabayashi, Hiroshi Tsuchikura, Atsushi Kuwabara, Hiroaki Adachi
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Patent number: 10070949Abstract: A vascular prosthesis with tubular woven structure, the prosthesis includes an inner layer adapted to contact a blood flow, the inner layer being formed of warp and weft yarns and having a cover factor of 1800 or more, each of a warp and weft yarns including a microfiber multifilament yarn with a monofilament fineness of 0.50 dtex or less, the multifilament yarn including microfiber monofilaments having an average intersecting angle S of the monofilaments of less than 25°.Type: GrantFiled: November 26, 2014Date of Patent: September 11, 2018Assignee: Toray Industries, Inc.Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Koji Kadowaki, Atsushi Kuwabara
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Patent number: 9987119Abstract: A double-weave vascular prosthesis includes an inner layer that contacts a flow of blood, and an outer layer in contact with the inner layer and having an inner layer-covering rate C (%) of 15%?C?75% defined by formula (1): C=[{(W1×D1+W2×D2)×25.4?W1×W2×D1 ×D2}/(25.4×25.4)]×100??(1), where D1 is a warp density (ends/25.4 mm) of the outer layer, D2 is a weft density (picks/25.4 mm) of the outer layer, W1 is an apparent width (mm) of a warp yarn of the outer layer, and W2 is an apparent width (mm) of a weft yarn of the outer layer, and the apparent width of each yarn is determined as a mean of measurement values for the widths of randomly selected five threads exposed on a surface of the woven structure.Type: GrantFiled: June 17, 2015Date of Patent: June 5, 2018Assignee: Toray Industries, Inc.Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Takayuki Kaneko, Atsushi Kuwabara, Yuka Sakaguchi, Koji Kadowaki, Motoki Takaoka
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Publication number: 20180147044Abstract: A multi-layer tubular woven construct is useful as a hose that transports a fluid or a powder or protects linear bodies such as wires, cables and conduits, as a tubular filter, or as a base material of a vascular prosthesis. In particular, a tubular woven construct in a tubular configuration woven by interlacing warp and weft yarns contains at least in part an elastic fiber yarn having a filament fineness of 1.0 dtex or more, the weft yarn containing at least in part a microfiber yarn having a filament fineness of less than 1.0 dtex.Type: ApplicationFiled: May 19, 2016Publication date: May 31, 2018Inventors: Hiroshi Tsuchikura, Takayuki Kaneko, Satoshi Yamada, Kazuhiro Tanahashi, Koji Kadowaki, Atsushi Kuwabara
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Publication number: 20170224466Abstract: A double-weave vascular prosthesis includes an inner layer that contacts a flow of blood, and an outer layer in contact with the inner layer and having an inner layer-covering rate C (%) of 15%?C?75% defined by formula (1): C=[{(W1×D1+W2×D2)×25.4?W1×W2×D1×D2}/(25.4×25.4)]×100 ??(1), where D1 is a warp density (ends/25.4 mm) of the outer layer, D2 is a weft density (picks/25.4 mm) of the outer layer, W1 is an apparent width (mm) of a warp yarn of the outer layer, and W2 is an apparent width (mm) of a weft yarn of the outer layer, and the apparent width of each yarn is determined as a mean of measurement values for the widths of randomly selected five threads exposed on a surface of the woven structure.Type: ApplicationFiled: June 17, 2015Publication date: August 10, 2017Applicant: Toray Industries, Inc.Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Takayuki Kaneko, Atsushi Kuwabara, Yuka Sakaguchi, Koji Kadowaki, Motoki Takaoka
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Patent number: 9719197Abstract: A multi-layer tubular woven construct includes two or more layers including an innermost layer and layer A that is a layer other than the innermost layer, layer A including a monofilament yarn serving as a weft yarn, the weft yarn extending spirally and circumferentially around the tubular woven construct to form the weft, the weft including threads lying adjacent to each other, the adjacent weft threads of the monofilament yarn having intervals larger than the diameter of the monofilament yarn.Type: GrantFiled: November 27, 2014Date of Patent: August 1, 2017Assignee: Toray Industries, Inc.Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Masaki Fujita, Atsushi Kuwabara
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Publication number: 20170035546Abstract: A vascular prosthesis with tubular woven structure, the prosthesis includes an inner layer adapted to contact a blood flow, the inner layer being formed of warp and weft yarns and having a cover factor of 1800 or more, each of a warp and weft yarns including a microfiber multifilament yarn with a monofilament fineness of 0.50 dtex or less, the multifilament yarn including microfiber monofilaments having an average intersecting angle S of the monofilaments of less than 25°.Type: ApplicationFiled: November 26, 2014Publication date: February 9, 2017Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Koji Kadowaki, Atsushi Kuwabara
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Publication number: 20170002484Abstract: A multi-layer tubular woven construct includes two or more layers including an innermost layer and layer A that is a layer other than the innermost layer, layer A including a monofilament yarn serving as a weft yarn, the weft yarn extending spirally and circumferentially around the tubular woven construct to form the weft, the weft including threads lying adjacent to each other, the adjacent weft threads of the monofilament yarn having intervals larger than the diameter of the monofilament yarn.Type: ApplicationFiled: November 27, 2014Publication date: January 5, 2017Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Masaki Fujita, Atsushi Kuwabara
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Publication number: 20160317272Abstract: A textile vascular prosthesis has reduced leakage of blood through the voids between the fibers. The vascular prosthesis with multi-layer tubular woven structure includes two types of yarns, the yarns being a microfiber multifilament yarn with a monofilament fineness of 0.5 dtex or less as a warp yarn that mainly forms an inner layer to be in contact with a blood flow and a multifilament yarn with a monofilament fineness of 1.0 dtex or more as a warp yarn that mainly forms an outer layer, the inner layer having an apparent cover factor of 2000 or more.Type: ApplicationFiled: December 16, 2014Publication date: November 3, 2016Applicant: Toray Industries, Inc.Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Atsushi Kuwabara, Akihiro Tokuda, Kazuhiro Tanahashi, Masaki Fujita, Koji Kadowaki
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Patent number: 7557474Abstract: An electromagnetic exciter includes a first suspension having a cylindrical side wall portion coaxial with respect to a cylindrical wall of a yoke of a magnetic circuit assembly, and a spring portion integrally formed at the lower end of the cylindrical side wall portion to support the lower end of the magnetic circuit assembly so that the magnetic circuit assembly is vibratable. An annular support member is secured to the inner peripheral surface of the upper end opening of the cylindrical side wall portion of the first suspension. A printed wiring board that supports a voice coil is supported on the annular support member. A protector has a cylindrical portion installed to cover the outer peripheral surface of the cylindrical side wall portion of the first suspension, and a caulking portion that is bent radially inward over the upper end edge of the cylindrical side wall portion of the first suspension to clamp the printed wiring board between itself and the annular support member.Type: GrantFiled: January 18, 2007Date of Patent: July 7, 2009Assignee: Citizen Electronics Co., Ltd.Inventors: Atsushi Kuwabara, Toshio Itakura
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Publication number: 20070164616Abstract: An electromagnetic exciter includes a first suspension having a cylindrical side wall portion coaxial with respect to a cylindrical wall of a yoke of a magnetic circuit assembly, and a spring portion integrally formed at the lower end of the cylindrical side wall portion to support the lower end of the magnetic circuit assembly so that the magnetic circuit assembly is vibratable. An annular support member is secured to the inner peripheral surface of the upper end opening of the cylindrical side wall portion of the first suspension. A printed wiring board that supports a voice coil is supported on the annular support member. A protector has a cylindrical portion installed to cover the outer peripheral surface of the cylindrical side wall portion of the first suspension, and a caulking portion that is bent radially inward over the upper end edge of the cylindrical side wall portion of the first suspension to clamp the printed wiring board between itself and the annular support member.Type: ApplicationFiled: January 18, 2007Publication date: July 19, 2007Inventors: Atsushi Kuwabara, Toshio Itakura
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Patent number: 7062062Abstract: An electromagnetic sound producing device has a yoke, a coil, a permanent magnet, and a diaphragm provided in a case. The permanent magnet is made of SmFeN-base isotropy plastic magnetic material.Type: GrantFiled: March 6, 2002Date of Patent: June 13, 2006Assignee: Citizen Electronics Co., Ltd.Inventor: Atsushi Kuwabara
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Patent number: 7010142Abstract: Disposed within a space formed between a base cover (2) and a top cover (1) attached to the base cover (2) is an electromagnetic sound generating part which has a diaphragm (9) attached to the base cover (2) and a drive part causing the diaphragm (9) to vibrate. The drive part includes a yoke (5) fitted in the base cover (2), a magnet (7) mounted on the yoke (5), a top plate (8) mounted on the magnet (7) and an exciting coil (6) disposed to oppose to side surfaces of the magnet (7) and top plate (8). Coil contact springs (10) are contained into housings (2a) provided on portions of the base cover inside than an outer peripheral edge of the diaphragm. The coil contact springs (10) act to connect the exciting coil (6) with an outside power source. The base cover (2) is provided with a pair of connecting pieces (11) or lead frames which are used to connect the exciting coil (6) and coil contact springs (10). The connecting pieces (11) are embedded in the base cover (2).Type: GrantFiled: November 25, 2003Date of Patent: March 7, 2006Assignee: Citizen Electronics Co., Ltd.Inventors: Atsushi Kuwabara, Akira Yoneyama, Yoshizumi Ohta, Terumi Kobayashi
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Patent number: 6843658Abstract: An electric connector has a frame made of insulation, and a double-ended volute spring composed by an outermost base cylinder, and a pair of volute spring portions extending from the base cylinder so as to be contact with terminals of an electronic instrument. The base cylinder is secured in a hole formed in the frame.Type: GrantFiled: March 26, 2003Date of Patent: January 18, 2005Assignee: Citizen Electronics Co., Ltd.Inventors: Atsushi Kuwabara, Tsutomu Ojima
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Patent number: 6845168Abstract: A speaker has a frame made of resin, a diaphragm provided in the frame, a voice coil mounted on the diaphragm. A pair of holes are formed under the diaphragm so as to be opened at an underside of the frame. A spring is connecting member provided in each of the holes to be projected from the underside of the frame, and connected to an end of the voice coil.Type: GrantFiled: April 9, 2003Date of Patent: January 18, 2005Assignee: Citizen Electronics Co., Ltd.Inventors: Atsushi Kuwabara, Yoshizumi Ohta
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Publication number: 20040105564Abstract: Disposed within a space formed between a base cover (2) and a top cover (1) attached to the base cover (2) is an electromagnetic sound generating part which has a diaphragm (9) attached to the base cover (29) and a drive part causing the diaphragm (9) to vibrate. The drive part includes a yoke (5) fitted in the base cover (2), a magnet (7) mounted on the yoke (5), a top plate (8) mounted on the magnet (7) and an exciting coil (6) disposed to oppose to side surfaces of the magnet (7) and top plate (8). Coil contact springs (10) are contained into housings (2a) provided on portions of the base cover inside than an outer peripheral edge of the diaphragm. The coil contact springs (10) act to connect the exciting coil (6) with an outside power source. The base cover (2) is provided with a pair of connecting pieces (11) or lead frames which are used to connect the exciting coil (6) and coil contact springs (10). The connecting pieces (11) are embedded in the base cover (2).Type: ApplicationFiled: November 25, 2003Publication date: June 3, 2004Applicant: CITIZEN ELECTRONICS CO., LTD.Inventors: Atsushi Kuwabara, Akira Yoneyama, Yoshizumi Ohta, Terumi Kobayashi
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Patent number: 6661898Abstract: A speaker comprises a lower frame assembly and an upper frame assembly. The lower frame assembly comprises a lower frame provided with a yoke, a permanent magnet secured to the yoke, and a top plate secured to the permanent magnet. The upper frame assembly comprises an upper frame provided with a diaphragm secured to the upper frame, and a voice coil secured to the diaphragm and disposed in a magnetic gap between the yoke and the top plate. A plurality of axial grooves are formed in a peripheral wall of the lower frame, and a plurality of engaging portions are formed on the upper frame, corresponding to the grooves of the lower frame. Each of the engaging portions comprises an engaging plate and a hook formed at an end of the engaging plate.Type: GrantFiled: February 8, 2002Date of Patent: December 9, 2003Assignee: Citizen Electronics Co., Ltd.Inventor: Atsushi Kuwabara
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Publication number: 20030194105Abstract: A speaker has a frame made of resin, a diaphragm provided in the frame, a voice coil mounted on the diaphragm. A pair of holes are formed under the diaphragm so as to be opened at an underside of the frame. A spring is connecting member provided in each of the holes to be projected from the underside of the frame, and connected to an end of the voice coil.Type: ApplicationFiled: April 9, 2003Publication date: October 16, 2003Applicant: Citizen Electronics Co., Ltd.Inventors: Atsushi Kuwabara, Yoshizumi Ohta
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Publication number: 20030186567Abstract: An electric connector has a frame made of insulation, and a double-ended volute spring composed by an outermost base cylinder, and a pair of volute spring portions extending from the base cylinder so as to be contact with terminals of an electronic instrument. The base cylinder is secured in a hole formed in the frame.Type: ApplicationFiled: March 26, 2003Publication date: October 2, 2003Applicant: Citizen Electronics Co., Ltd.Inventors: Atsushi Kuwabara, Tsutomu Ojima