Patents by Inventor Nozomu Kawasetsu
Nozomu Kawasetsu 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: 9221201Abstract: A reinforced fiber base material is placed on a forming die having a concave part and fixed to the forming die by at least a pair of fixing members disposed on either side of the concave part so as to form a gap between the reinforced fiber base material and a bottom surface of the concave part of the forming die. Subsequently, the reinforced fiber base material fixed to the forming die is covered by a bag film, a forming space that is formed between the forming die and the bag film is decompressed, and a matrix resin is allowed to flow inside the decompressed forming space. The matrix resin is then hardened so as to obtain a composite material in which the reinforced fiber base material and the matrix resin are integrally formed.Type: GrantFiled: June 3, 2013Date of Patent: December 29, 2015Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takeshi Fujita, Kentaro Shindo, Nozomu Kawasetsu
-
Patent number: 8991641Abstract: A toroidal pressure vessel having extremely high pressure resistance has laminated latitudinal reinforcing fiber layers to improve a strength in a latitudinal direction of the pressure vessel. Moreover, putting reinforcing fibers constituting those laminated latitudinal reinforcing fiber layers in continuity enables further improvement of strength in the latitudinal direction of the pressure vessel, for example compared with a case where the reinforcing fibers are divided for each layer.Type: GrantFiled: April 15, 2011Date of Patent: March 31, 2015Assignees: Mitsubishi Heavy Industries, Ltd., Shikibo Ltd.Inventors: Tetsuya Ozawa, Nozomu Kawasetsu, Kentaro Shindo, Mitsuru Kondo, Akira Fukushima, Masayasu Ishibashi, Takeshi Tanamura, Kazuo Nakajima, Hiroshi Sakai, Tetsuro Hirokawa
-
Patent number: 8945450Abstract: In an apparatus for manufacturing a fiber reinforced plastic structure, a cavity is formed by a first mold and a film second mold covering the first mold, and plastic is impregnated to a fiber laminate provided in the cavity in a depressurized state. The apparatus includes: a mesh plastic flow medium that is disposed on the side of the second mold and increases the volume of the plastic to be impregnated to the fiber laminate; and a plastic flow suppressing member that is disposed on the side of the first mold of the plastic flow medium, and suppresses advance of a flow front of fluid plastic injected from a main plastic supplying unit (a first plastic supplying unit).Type: GrantFiled: November 4, 2009Date of Patent: February 3, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kentaro Shindo, Nozomu Kawasetsu
-
Patent number: 8870231Abstract: In a fiber-reinforced resin pipe for introducing and discharging a liquid, a pipe (1) is provided with a plurality of introduction/discharge parts (2) for introducing or discharging liquid that are arranged at intervals in the axial direction from a peripheral surface of the pipe.Type: GrantFiled: April 24, 2009Date of Patent: October 28, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Arisawa Mfg. Co., Ltd.Inventors: Nozomu Kawasetsu, Yoshinori Nonaka, Kenji Tanaka, Koji Ando, Hiroshi Tanaka, Yuuichi Kawai
-
Patent number: 8820361Abstract: A highly practical tube body for a pressure transducer is provided which has excellent pressure resistance, corrosion resistance, and tensile strength; which can be manufactured at low cost in comparison with cases of using stainless steel; and which makes it possible to keep inside diameter precision high. In this tube body for a pressure transducer, the pressure applied to the interior is varied periodically, and a seal layer (2) is provided to the internal peripheral surface of a tube body (1) made of a fiber-reinforced resin composed of fibers wound in layers.Type: GrantFiled: February 26, 2010Date of Patent: September 2, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Arisawa Mfg., Ltd.Inventors: Nozomu Kawasetsu, Yoshinori Nonaka, Kenji Tanaka, Takayoshi Hori, Kiichi Tokunaga, Hidemi Sawada, Hiroshi Tanaka, Yuichi Kawai, Takahiro Iiyoshi
-
Patent number: 8789275Abstract: A wind turbine blade having a spar cap disposed between layers constituting an outer skin or disposed on an inner side of the outer skin and a method of manufacturing the wind turbine blade are provided, wherein in manufacture of the wind turbine blade, generation of manufacturing defects, such as misalignment and wrinkles in fabrics, can be suppressed and the time required for repairing the defects as well as for laminating the layers can be reduced. In the method of manufacturing the wind turbine blade having the spar cap as a main structural member of the blade disposed between the layers constituting the outer skin or disposed on the inner side of the outer skin, the spar cap is formed as a separate piece from the outer skin, and the spar cap, dry fiber fabrics for the layers constituting the outer skin, and a sandwich core member are collectively impregnated with resin under a vacuum process.Type: GrantFiled: July 9, 2009Date of Patent: July 29, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kouji Esaki, Takao Kuroiwa, Nozomu Kawasetsu, Kentaro Shindo, Toru Matsuo
-
Publication number: 20140027960Abstract: A reinforced fiber base material is placed on a forming die having a concave part and fixed to the forming die by at least a pair of fixing members disposed on either side of the concave part so as to form a gap between the reinforced fiber base material and a bottom surface of the concave part of the forming die. Subsequently, the reinforced fiber base material fixed to the forming die is covered by a bag film, a forming space that is formed between the forming die and the bag film is decompressed, and a matrix resin is allowed to flow inside the decompressed forming space. The matrix resin is then hardened so as to obtain a composite material in which the reinforced fiber base material and the matrix resin are integrally formed.Type: ApplicationFiled: June 3, 2013Publication date: January 30, 2014Inventors: Takeshi FUJITA, Kentaro SHINDO, Nozomu KAWASETSU
-
Patent number: 8556590Abstract: A wind-turbine rotor blade has an outer skin member formed of fiber-reinforced plastic, shear webs, and trailing-edge sandwich members disposed closer to a trailing edge than the shear webs are. The outer skin member at the dorsal side located closer to the trailing edge than a trailing-edge end of the trailing-edge sandwich member located at the dorsal side or a vicinity of the trailing-edge end of the trailing-edge sandwich member located at the dorsal side is coupled, via a reinforcing member, with the outer skin member at the ventral side located closer to the trailing edge than the trailing-edge end of the trailing-edge sandwich member located at the ventral side or a vicinity of the trailing-edge end of the trailing-edge sandwich member located at the ventral side.Type: GrantFiled: December 25, 2009Date of Patent: October 15, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kouji Esaki, Takao Kuroiwa, Nozomu Kawasetsu
-
Patent number: 8376713Abstract: Provided is a wind turbine rotor blade that can secure a sufficient strength in a coupling portion without significant increase in weight even though a blade is increased in size because beams, which are main strength members of the separated blades, are coupled to each other by metallic coupling members.Type: GrantFiled: August 12, 2011Date of Patent: February 19, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Nozomu Kawasetsu, Kentaro Shindo, Takao Kuroiwa, Shinichi Hori
-
Publication number: 20120211476Abstract: Provided is a cutting apparatus for fiber-reinforced plastics that reduces an increase in processing cost and also reduces a decrease in the quality of a cut surface. The cutting apparatus includes a laser emitter (10) for emitting pulsed laser light for irradiation of a fiber-reinforced plastic (2) to be cut and a cutting head (30) for outputting the laser light emitted from the laser emitter (10) toward the fiber-reinforced plastic (2), the laser light has a pulse width of no less than 1 fs and no more than 999 ps, and the moving speed of the cutting head (30) relative to the fiber-reinforced plastic (2) is about 1.5 m/min or more.Type: ApplicationFiled: October 28, 2010Publication date: August 23, 2012Inventors: Yasuyuki Fujiya, Nozomu Kawasetsu, Michisuke Nayama, Satoru Nooka, Tomoyoshi Baba
-
Publication number: 20120186730Abstract: Provided are a reinforcement fabric laminating apparatus and a method for the same in which wrinkles that occur when a sheet-like reinforcement fabric is laminated on a curved or bent mold can be prevented, the workload can be reduced, and the operating efficiency can be improved. A reinforcement fabric laminating apparatus including a sheet feeding unit that feeds out a reinforcement fabric to be laminated on a mold and a pressure contact unit that pressure-contacts the reinforcement fabric onto the mold, wherein the pressure contact unit has a narrower width than the reinforcement fabric, and the sheet feeding unit supplies the reinforcement fabric while applying tension between the sheet feeding unit and the pressure contact unit.Type: ApplicationFiled: December 24, 2010Publication date: July 26, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kentaro Shindo, Nozomu Kawasetsu, Takao Kuroiwa, Hirokazu Yamasaki
-
Publication number: 20120141282Abstract: An object is to improve the buckling strength with respect to a load in the edge direction, to bring the safety factor for the buckling strength closer to the safety factor for the material strength, and to achieve a further reduction in weight. A wind-turbine rotor blade (5) has an outer skin member (11) formed of fiber-reinforced plastic, shear webs (15), and trailing-edge sandwich members (14) disposed closer to a trailing edge (18) than the shear webs (15) are.Type: ApplicationFiled: December 25, 2009Publication date: June 7, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kouji Esaki, Takao Kuroiwa, Nozomu Kawasetsu
-
Publication number: 20120100002Abstract: Provided is a wind turbine rotor blade that can secure a sufficient strength in a coupling portion without significant increase in weight even though a blade is increased in size because beams, which are main strength members of the separated blades, are coupled to each other by metallic coupling members.Type: ApplicationFiled: August 12, 2011Publication date: April 26, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Nozomu KAWASETSU, Kentaro SHINDO, Takao KUROIWA, Shinichi HORI
-
Publication number: 20120090718Abstract: A highly practical tube body for a pressure transducer is provided which has excellent pressure resistance, corrosion resistance, and tensile strength; which can be manufactured at low cost in comparison with cases of using stainless steel; and which makes it possible to keep inside diameter precision high. In this tube body for a pressure transducer, the pressure applied to the interior is varied periodically, and a seal layer (2) is provided to the internal peripheral surface of a tube body (1) made of a fiber-reinforced resin composed of fibers wound in layers.Type: ApplicationFiled: February 26, 2010Publication date: April 19, 2012Applicants: ARISAWA MFG. CO., LTD., MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Nozomu Kawasetsu, Yoshinori Nonaka, Kenji Tanaka, Takayoshi Hori, Kiichi Tokunaga, Hidemi Sawada, Hiroshi Tanaka, Yuichi Kawai, Takahiro Iiyoshi
-
Publication number: 20120093656Abstract: A wind turbine blade having a spar cap disposed between layers constituting an outer skin or disposed on an inner side of the outer skin and a method of manufacturing the wind turbine blade are provided, wherein in manufacture of the wind turbine blade, generation of manufacturing defects, such as misalignment and wrinkles in fabrics, can be suppressed and the time required for repairing the defects as well as for laminating the layers can be reduced. In the method of manufacturing the wind turbine blade having the spar cap as a main structural member of the blade disposed between the layers constituting the outer skin or disposed on the inner side of the outer skin, the spar cap is formed as a separate piece from the outer skin, and the spar cap, dry fiber fabrics for the layers constituting the outer skin, and a sandwich core member are collectively impregnated with resin under a vacuum process.Type: ApplicationFiled: July 9, 2009Publication date: April 19, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kouji Esaki, Takao Kuroiwa, Nozomu Kawasetsu, Kentaro Shindo, Toru Matsuo
-
Publication number: 20120024866Abstract: Provided is a toroidal pressure vessel having extremely high pressure resistance. Laminating latitudinal reinforcing fiber layers (32) enables to improve a strength in a latitudinal direction of a pressure vessel (1). Moreover, putting reinforcing fibers (32a) constituting those laminated latitudinal reinforcing fiber layers (32) in continuity enables to further improve the strength in the latitudinal direction of the pressure vessel (1), for example compared with a case where the reinforcing fibers are divided for each layer.Type: ApplicationFiled: April 15, 2011Publication date: February 2, 2012Inventors: Tetsuya Ozawa, Nozomu Kawasetsu, Kentaro Shindo, Mitsuru Kondo, Akira Fukushima, Masayasu Ishibashi, Takeshi Tanamura, Kazuo Nakajima, Hiroshi Sakai, Tetsuro Hirokawa
-
Publication number: 20110171038Abstract: A wind turbine rotor blade includes an outer skin material formed of fiber-reinforced plastic, main strength materials (super cap materials) disposed on inner surfaces of a back side and a front side of the outer skin material, and crossbeam materials (sheer webs) disposed between the main strength materials, wherein the main strength material is formed by stacking, one on top of another, reinforced fiber sheets having constant widths in a longitudinal direction.Type: ApplicationFiled: March 24, 2011Publication date: July 14, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kouji ESAKI, Takao KUROIWA, Nozomu KAWASETSU
-
Publication number: 20110100541Abstract: In an apparatus for manufacturing a fiber reinforced plastic structure, a cavity is formed by a first mold and a film second mold covering the first mold, and plastic is impregnated to a fiber laminate provided in the cavity in a depressurized state. The apparatus includes: a mesh plastic flow medium that is disposed on the side of the second mold and increases the volume of the plastic to be impregnated to the fiber laminate; and a plastic flow suppressing member that is disposed on the side of the first mold of the plastic flow medium, and suppresses advance of a flow front of fluid plastic injected from a main plastic supplying unit (a first plastic supplying unit).Type: ApplicationFiled: November 4, 2009Publication date: May 5, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kentaro SHINDO, Nozomu Kawasetsu
-
Publication number: 20110052403Abstract: A wind-turbine blade that prevents foreign matter from entering the inside thereof during transportation and that can be efficiently assembled in good condition is provided. A wind-turbine blade includes a skin that forms a long and hollow shape, and a main spar that extends in the longitudinal direction and reinforces the skin from the inside thereof. The main spar is divided into a blade-root-side main spar and a blade-tip-side main spar in the longitudinal direction; the blade-root-side main spar and the blade-tip-side main spar have connection sections that are connected to each other; the skin is divided into a connection-section skin, located at a position corresponding to the connection sections, a blade-root-side skin, and a blade-tip-side skin; and openings formed in the blade-root-side skin and the blade-tip-side skin are blocked off by blanking plates.Type: ApplicationFiled: August 26, 2009Publication date: March 3, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Nozomu Kawasetsu, Kouji Esaki, Takao Kuroiwa, Shinichi Hori
-
Publication number: 20100206421Abstract: There is provided an extremely practical fiber-reinforced resin pipe that is lightweight and easy to handle; does not require a weld joint to provide an introduction/outlet part, closure lid, or other component; has excellent corrosion resistance; and is substantially less expensive than a super stainless steel pipe. In a fiber-reinforced resin pipe for introducing and discharging a liquid, a pipe (1) is provided with a plurality of introduction/discharge parts (2) for introducing or discharging liquid that are arranged at intervals in the axial direction from a peripheral surface of the pipe.Type: ApplicationFiled: April 24, 2009Publication date: August 19, 2010Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., ARISAWA MFG. CO., LTD.Inventors: Nozomu Kawasetsu, Yoshinori Konaka, Kenji Tanaka, Koji Ando, Hiroshi Tanaka, Yuuichi Kawai