Patents by Inventor Manabu Nomura
Manabu Nomura 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: 6457917Abstract: The method of forming a light-weight, fiber-reinforced, particularly glass fiber-reinforced-thermoplastic resin product includes the steps of melting and mixing thermoplastic resin pellets containing parallely oriented fibers 2-100 mm long, injecting the melted resin into a cavity which is closed so that its volume is smaller than that of the final molded product, and, before or after the resin injection is completed, opening the cavity until its volume is equal to that of the final molded product. Unlike the conventional injection-molded products, this product does not require a foaming agent and, if it uses any, requires only a small amount of foaming agent. The product thus formed is light in weight and has fibers uniformly entangled inside, providing an excellent appearance of the surface. Further a skin layer is formed over the surface. These features combined with the reinforcement by the glass fibers offer high strength and high stiffness.Type: GrantFiled: July 27, 1999Date of Patent: October 1, 2002Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Yasunobu Yamazaki, Tomokazu Abe, Kaoru Wada, Takayoshi Tanaka
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Publication number: 20020094428Abstract: A fiber-reinforced lightweight resin molded article with pores has a portion having a porosity lower than that of other general portions. Such a low-porosity portion serves as a rib in the resultant molded articles, to thereby enables to provide a fiber-reinforced lightweight resin molded article having excellent rigidity, bending strength, impact strength, uniformity of strength, resistance to local stress and torsion. The present invention also provides an efficient method for manufacturing the fiber-reinforced lightweight resin molded article.Type: ApplicationFiled: February 12, 2002Publication date: July 18, 2002Applicant: IDEMITSU PETROCHEMICAL CO., LTD.Inventors: Manabu Nomura, Toru Shima, Atsushi Sato
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Publication number: 20020089078Abstract: A method for injection-molding a plastics propeller fan by using a fixed-side mold section and movable-side mold section, comprises the steps of providing a movable core at an area corresponding to a thicker portion of a blade section of the propeller fan; after a predetermined amount of plastics material has been injected into a blade space of a mold cavity defined by the fixed-side mold section, movable-side metal section and movable core and conforming to the propeller fan, pushing out the movable core into the mold cavity and, after this step, bringing the movable core back to a normal position conforming to a mold shape defining the blade space and forming a proper fan.Type: ApplicationFiled: January 11, 2001Publication date: July 11, 2002Inventors: Atsushi Suzuki, Masashi Inoue, Fumio Kondoh, Naoki Toda, Matsuo Sakuma, Hirofumi Gouda, Manabu Nomura
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Publication number: 20020059706Abstract: The method of forming a light-weight, fiber-reinforced, particularly glass fiber-reinforced-thermoplastic resin product includes the steps of melting and mixing thermoplastic resin pellets containing parallely oriented fibers 2-100 mm long, injecting the melted resin into a cavity which is closed so that its volume is smaller than that of the final molded product, and, before or after the resin injection is completed, opening the cavity until its volume is equal to that of the final molded product. Unlike the conventional injection-molded products, this product does not require a foaming agent and, if it uses any, requires only a small amount of foaming agent. The product thus formed is light in weight and has fibers uniformly entangled inside, providing an excellent appearance of the surface. Further a skin layer is formed over the surface. These features combined with the reinforcement by the glass fibers offer high strength and high stiffness.Type: ApplicationFiled: July 27, 1999Publication date: May 23, 2002Inventors: MANABU NOMURA, YASUNOBU YAMAZAKI, TOMOKAZU ABE, KAORU WADA, TAKAYOSHI TANAKA
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Patent number: 6380168Abstract: The present invention provides a composition which is useful for promoting hair growth and methods for using the same. The hair growth promoter composition comprises a compound of the formula: wherein X, R1, R2, Z1, and Z2 are those described herein. Preferably, the compound comprises at least two saccharide moieties.Type: GrantFiled: July 7, 2000Date of Patent: April 30, 2002Assignee: Nomura Co., Ltd.Inventors: Michinori Kubo, Masayuki Yoshikawa, Hideaki Matsuda, Hisashi Matsuda, Toshiyuki Murakami, Hiromi Shimada, Tetsuo Sakurama, Manabu Nomura
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Patent number: 6368701Abstract: A fiber-reinforced lightweight resin molded article with pores has a portion having a porosity lower than that of other general portions. Such a low-porosity portion serves as a rib in the resultant molded articles, to thereby enables to provide a fiber-reinforced lightweight resin molded article having excellent rigidity, bending strength, impact strength, uniformity of strength, resistance to local stress and torsion. The present invention also provides an efficient method for manufacturing the fiber-reinforced lightweight resin molded article.Type: GrantFiled: November 25, 1998Date of Patent: April 9, 2002Assignee: Idemttsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Toru Shima, Atsushi Sato
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Patent number: 6297363Abstract: The present invention relates to a novel class of glycoside indoles. More specifically, the present invention relates to a novel class of glycoside indoles isolated from Calanthe discolor Lindl. and derivatives thereof.Type: GrantFiled: February 25, 1998Date of Patent: October 2, 2001Assignee: Nomura Co., Ltd.Inventors: Michinori Kubo, Masayuki Yoshikawa, Hideaki Matsuda, Hisashi Matsuda, Toshiyuki Murakami, Hiromi Shimada, Tetsuo Sakurama, Manabu Nomura
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Patent number: 6165396Abstract: The present invention is directed to a method of obtaining a gas-introduced fiber-reinforced resin injection molding and to a molding obtained by the method. According to the present invention, there can be obtained a lightweight gas-introduced fiber-reinforced resin injection molding containing glass fibers or like fibers having excellent rigidity and strength and improved surface properties.Type: GrantFiled: May 7, 1998Date of Patent: December 26, 2000Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Atsushi Sato, Manabu Nomura, Toru Shima, Kaoru Wada
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Patent number: 6099949Abstract: Disclosed is a method of molding a fiber-reinforced resin laminate which can manufacture a lightweight laminated molding having excellent mechanical characteristics regardless of the shape of a molding, which can readily unite a surface coat material and a molding while the surface coat material is held in good condition, and which can impart excellent appearance to a laminated molding. Also disclosed is a laminated molding manufactured by the method. The method uses a molding material which contains fiber-containing thermoplastic resin pellets which, in turn, contain reinforcing fibers having a length of 2 mm to 100 mm. The reinforcing fibers account for 5% to 70% by weight of the molding material. A molten resin obtained through the plasticization of the molding material is injected into a die, onto which a surface coat material for covering the surface of a molding is previously attached.Type: GrantFiled: May 7, 1998Date of Patent: August 8, 2000Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Kaoru Wada, Atsushi Sato, Tomokazu Abe
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Patent number: 6010656Abstract: The method of forming a light-weight, fiber-reinforced, particularly glass fiber-reinforced-thermoplastic resin product includes the steps of melting and mixing thermoplastic resin pellets containing parallely oriented fibers 2-100 mm long, injecting the melted resin into a cavity which is closed so that its volume is smaller than that of the final molded product, and, before or after the resin injection is completed, opening the cavity until its volume is equal to that of the final molded product. Unlike the conventional injection-molded products, this product does not require a foaming agent and, if it uses any, requires only a small amount of foaming agent. The product thus formed is light in weight and has fibers uniformly entangled inside, providing an excellent appearance of the surface. Further a skin layer is formed over the surface. These features combined with the reinforcement by the glass fibers offer high strength and high stiffness.Type: GrantFiled: August 11, 1998Date of Patent: January 4, 2000Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Yasunobu Yamazaki, Tomokazu Abe, Kaoru Wada, Takayoshi Tanaka
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Patent number: 5997874Abstract: The present invention relates to a class of dihydrophenanthrene which are isolated from Calanthe discolor Lindl. and derivatives thereof.Type: GrantFiled: February 25, 1998Date of Patent: December 7, 1999Assignee: Nomura Co., Ltd.Inventors: Michinori Kubo, Masayuki Yoshikawa, Hideaki Matsuda, Hisashi Matsuda, Toshiyuki Murakami, Hiromi Shimada, Tetsuo Sakurama, Manabu Nomura
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Patent number: 5750107Abstract: The present invention relates to a composition useful in as a hair growth promoter which contains an extract drawn from a plant having a pseudo bulb selected from the group consisting of Calanthe R. Br. and Phaius Lour. The extract can be obtained from either a portion of a plant or the pseudo bulb of Calanthe discolor Lindl. or Phaius flavus (Blume) Lindl. by extraction of such a plant in an extraction solvent. The composition may include vitamins, amino acids, animal and plant oils, and sodium chloride. When applied to an area of skin afflicted with alopecia, the composition is useful for promoting hair growth.Type: GrantFiled: June 12, 1996Date of Patent: May 12, 1998Inventor: Manabu Nomura
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Patent number: 5232971Abstract: A polyolefin resin composition including(1) 67 to 96 wt.%, based on the total quantity of (1), (2) and (3), of polyolefin,(2) 3 to 25 wt.%, based on the total quantity of (1), (2) and (3), of titanium oxide,(3) 3 to 30 wt.%, based on the total quantity of (1), (2) and (3), of a plate-shaped inorganic filler, and(4) 5 to 150 ppm, based on the total quantity of (1), (2) and (3), of carbon black. The polyolefin resin composition of the present invention is superior in brightness and light intercepting properties and may be advantageously employed in e.g. a material of a meter casing for an automobile.Type: GrantFiled: March 13, 1992Date of Patent: August 3, 1993Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Kouji Sato, Kaoru Wada
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Patent number: 5073447Abstract: The polypropylene-based composite resin composition of the invention, which can be molded into a shaped article having excellent surface hardness and impact strength at low temperatures and usable as a shell plate member of automobiles, comprises (a) a polypropylene resin as the matrix phase, (b) particles of rubber-reinforced styrene-based resin as the dispersed phase having a specified area-average particle diameter, of which the rubber particles having a specified area-average particle diameter forms a "salami" structure as dispersed in the styrene-based resin, and (c) a layer of a compatibility improver, such as a styrene-based thermoplastic elastomer, on the surface of the particles of the rubber-reinforced styrene-based resin in a specified thickness.Type: GrantFiled: December 8, 1989Date of Patent: December 17, 1991Assignees: Idemitsu Petrochemical Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Hirohide Mizuno, Shinichi Koide, Manabu Nomura, Nobuya Kawamura, Takeyoshi Nishio, Takao Nomura
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Patent number: 5030682Abstract: Disclosed is a glass fiber reinforced polyolefin resin composition comprising 15-80% by weight of polypropylene, 20-60% by weight of polybutene-1 and 5-60% by weight of glass fiber. This resin composition is excellent in the balance of impact strength, stiffness, heat distortion temperature, surface hardness and processability. When this composition is molded, the molded products have no surface roughness and no color shade and have good appearance. The properties are further improved when a modified polyolefin alone or together with a crystal nucleating agent are added.Type: GrantFiled: July 31, 1989Date of Patent: July 9, 1991Assignee: Idemitsu Petrochemical Company LimitedInventors: Manabu Nomura, Hirohide Mizuno, Kaoru Wada
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Patent number: 5013773Abstract: A thermoplastic resin composition which comprises 30 to 99 wt % of a thermoplastic resin and 1 to 70 wt % of granulated fiber formed by granulating inorganic fibers having an average fiber diameter of 0.1 to 1.0 .mu.m, an aspect ratio of 50 to 300, and an oil absorption of 400 ml/100 g and above, said granulated fiber having an average diameter of 0.5 to 5 mm and a bulk density of 0.15 to 0.4.A process for producing a thermoplastic resin composition which comprises mixing in a mixer 30 to 99 wt % of a thermoplastic resin and 1 to 70 wt % of granulated fiber formed by granulating inorganic fibers having an average fiber diameter of 0.1 to 1.0 .mu.m, an aspect ratio of 50 to 300, and an oil absorption of 400 ml/100 g and above, said granulated fiber having an average diameter of 0.5 to 5 mm and a bulk density of 0.15 to 0.4.Type: GrantFiled: December 7, 1988Date of Patent: May 7, 1991Assignee: Idemitsu Petrochemical Company LimitedInventors: Manabu Nomura, Kaoru Wada
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Patent number: 4990554Abstract: A polyolefin composition is disclosed, which comprises a polyolefin and an inorganic filler, wherein the polyolefin composition comprising (A) 75 to 97% by weight of a polyolefin component comprising (a) 90-65 parts by weight of a polymer composition comprising a crystalline polypropylene component and an ethylene-propylene random copolymer component and having an ethylene content of 7% by weight or less and/or a propylene homopolymer and (b) 10 to 35 parts by weight of a polyethylene having a melt index of not lower than 10 g/10 min., said melt index being from 1.0 to 50 times that of the polymer (a), and (B) 25 to 3% by weight of a fibrous inorganic filler having an average fiber diameter of 0.1 to 0.8 micrometer and an aspect ratio of 20 to 60.The polyolefin composition is capable of providing, upon molding, articles having good surface appearance, in particular glossiness and improved mechanical strengths with less warping and deformation.Type: GrantFiled: May 23, 1989Date of Patent: February 5, 1991Assignee: Idemitsu Petrochemical Company LimitedInventors: Manabu Nomura, Ryozo Tomomatsu, Toshifumi Shimazaki
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Patent number: 4987173Abstract: A polyolefin resin composition comprising from 30% to 96% by weight of a polyolefin, from 3% to 50% by weight of a fibrous inorganic filler selected from the group consisting of a magnesium hydroxide fiber, a magnesium oxide fiber, and a gypsum fiber having a mean fiber diameter of from 0.1 to 2 .mu.m and an aspect ratio of from 20 to 100 or a mixture of two or more of said inorganic fillers, and from 1% to 60% by weight of a thermoplastic elastomer.The said composition provides a molded material which has a good external appearance and is excellent in the impact strength, rigidity, and heat stability.Type: GrantFiled: December 22, 1988Date of Patent: January 22, 1991Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Ryuzo Tomomatsu, Kazuaki Kihara
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Patent number: 4407986Abstract: A polypropylene composition comprising a crystalline polypropylene and a precipitated calcium carbonate which is subjected to a surface-treatment with a suitable dispersant, and has an average particle diameter of from 0.1 to 0.4.mu..Type: GrantFiled: June 14, 1982Date of Patent: October 4, 1983Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Norio Sugi, Takayoshi Tanaka, Koichi Hara