Patents by Inventor Toshihide Nakashima

Toshihide Nakashima 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: 7147905
    Abstract: A laminate comprising at least a surface layer (I) and an adjacent layer (II) thereto, characterized in that the surface layer (I) comprises a cross-linked copolymer formed by cross-linking a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound, and the adjacent layer (II) comprises a hydrogenated copolymer formed by hydrogenating a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound; a multilayer tube comprising the laminate; and a medical device comprising the laminate, and/or the multilayer tube.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: December 12, 2006
    Assignees: Kuraray Co., Ltd., Kawasumi Laboratories, Inc.
    Inventors: Motohiro Fukuda, Naoto Fukuhara, Yukihiro Fujieda, Toshihide Nakashima, Koji Inai, Toshiji Ichikawa, Akira Ishida
  • Publication number: 20040241478
    Abstract: A laminate comprising at least a surface layer (I) and an adjacent layer (II) thereto, characterized in that the surface layer (I) comprises a cross-linked copolymer formed by cross-linking a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound, and the adjacent layer (II) comprises a hydrogenated copolymer formed by hydrogenating a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound; a multilayer tube comprising the laminate; and a medical device comprising the laminate, and/or the multilayer tube.
    Type: Application
    Filed: April 16, 2004
    Publication date: December 2, 2004
    Inventors: Motohiro Fukuda, Naoto Fukuhara, Yukihiro Fujieda, Toshihide Nakashima, Koji Inai, Toshiji Ichikawa, Akira Ishida
  • Patent number: 6732734
    Abstract: A balloon catheter and its pilot balloon system visually indicate the state of the inflation of a balloon placed in a human body. The small pilot balloon is conveniently manufactured by blow molding utilizing substantially the same material and has substantially the same structure as the main balloon. The pilot balloon is useful for a catheter with balloon or a tube with cuff where the balloon or the cuff is made of a very resilient material. The preferred material is a blend of composition having certain properties comprising styrenic thermoplastic elastomer and polyolefin.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: May 11, 2004
    Assignee: Kuraray Co., Ltd.
    Inventors: Masayasu Ogushi, Kyoichiro Shibatani, Toshihide Nakashima, Motohiro Fukuda, Toshiyuki Zento, Yasuzo Kirita, Yukihiro Fujieda, Chuck Bates
  • Publication number: 20020160134
    Abstract: A balloon catheter and its pilot balloon system visually indicate the state of the inflation of a balloon placed in a human body. The small pilot balloon is conveniently manufactured by blow molding utilizing substantially the same material and has substantially the same structure as the main balloon. The pilot balloon is useful for a catheter with balloon or a tube with cuff where the balloon or the cuff is made of a very resilient material. The preferred material is a blend of composition having certain properties comprising styrenic thermoplastic elastomer and polyolefin.
    Type: Application
    Filed: April 27, 2001
    Publication date: October 31, 2002
    Applicant: Kuraray Co., Ltd.
    Inventors: Masayasu Ogushi, Kyoichiro Shibatani, Toshihide Nakashima, Motohiro Fukuda, Toshiyuki Zento, Yasuzo Kirita, Yukihiro Fujieda, Chuck Bates
  • Publication number: 20020104544
    Abstract: An endotracheal tube comprising a tube obtained by subjecting a resin composition comprising a styrenic elastomer and a polyolefin to extrusion-molding, wherein the tube has a storage modulus (MD) of 5.0×107 to 8.0×108 dyne/cm2 in the extrusion direction of at 25° C., and has a ratio of the storage modulus (MD) in the extrusion direction to a storage modulus (TD) in the circumferential direction (MD/TD) of not more than 1.3 at 25° C. The endotracheal tube can be suitably used for an orally inserted endotracheal tube, a nasally inserted endotracheal tube, and a tube for tracheostomy to be inserted into the trachea from a tracheostoma. A cuff having a storage modulus of not more than 5.0×108 dyne/cm at 25° C., obtained by subjecting a resin composition comprising a styrenic elastomer and a polyolefin to blow-molding, wherein the resin composition has a melt tension of not less than 1 g at 230° C. The cuff can be used in the endotracheal tube.
    Type: Application
    Filed: November 29, 2001
    Publication date: August 8, 2002
    Applicant: Kuraray Co., Ltd.
    Inventors: Masayasu Ogushi, Motohiro Fukuda, Toshiyuki Zento, Yasuzo Kirita, Toshihide Nakashima, Yukihiro Fujieda
  • Patent number: 5814681
    Abstract: A restorative composition for hard tissue, comprising a paste (A) containing an inorganic calcium phosphate powder, a polymerizable monomer mixture and a polymerization initiator, and a paste (B) containing an inorganic calcium phosphate powder, a polymerizable monomer mixture and a polymerization accelerator, wherein the content of the inorganic calcium phosphate powder in each paste is 75-85% by weight, and each monomer mixture contains a monomer of the formula (1): ##STR1## and a monomer of the formula (2): ##STR2## the content of the monomer (1) accounting for 40-65% by weight of the monomer mixture as a whole. The composition can well adhere to the bone and has a sufficient water resistance. As it generates little heat upon hardening, it is less detrimental to the patient's tissues. Furthermore, the paste has an appropriate consistency, which facilitates homogeneous mixing of the paste and application of the resultant mixture to the affected part by the use of a dispensing apparatus.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: September 29, 1998
    Assignee: Kuraray Co., Ltd.
    Inventors: Kenichi Hino, Toshihide Nakashima
  • Patent number: 5609546
    Abstract: When an overdrive cut is performed to an automatic transmission control when climbing uphill slopes, the actuator position An is stored in overdrive cut aperture storage value C with overdrive cut demands to the automatic transmission executed until the actuator position changes by a first predetermined value Ct1. If the condition C-An>Ct1 is satisfied for a predetermined period of time T0 until timer counter TMR becomes zero, then restoration to overdrive is allowed. Accordingly, even when cruising along long uphill roads, up-shifts to overdrive are prohibited during this time and because there are no up-shifts to overdrive during this time, vehicular speed does not change in fixed periods and thus, a high-level of passenger comfort is achieved.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: March 11, 1997
    Assignee: Nippondenso Co., Ltd.
    Inventors: Yoshinari Torii, Toshihide Nakashima
  • Patent number: 5192684
    Abstract: A human IgG.sub.1 type monoclonal antibody which possesses a molecular weight in the range of 180,000.+-.20,000 as measured by the method of polyacrylamide gel electrophoresis performed in the presence of sodium dodecyl sulfate and is specific to nicotinic acetylcholine receptor. The human IgG.sub.1 type monoclonal antibody mentioned above is produced by a method which comprises fusing human cells capable of producing an antibody against nicotinic acetylcholine receptor with propagable human cells thereby giving rise to a hybridoma capable of producing the aforementioned human IgG.sub.1 type monoclonal antibody, selecting the hybridoma from the production of the fusion, culturing the hybridoma thereby giving rise to the aforementioned human IgG.sub.1 type monoclonal antibody, and selecting the antibody from the cultured medium. The hybridoma mentioned above is also identified.
    Type: Grant
    Filed: March 30, 1988
    Date of Patent: March 9, 1993
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade and Industry
    Inventors: Masao Tanihara, Hideaki Yamada, Toshihide Nakashima, Yoshiaki Omura, Koichi Takakura
  • Patent number: 5132402
    Abstract: There is disclosed an adsorbent, comprising a carrier on which is immobilized a peptide possessing an ability to bind to the human antibody to the nicotinic acetylcholine receptor and represented by the formula:H--X--A--Y--Zwherein A stands for a peptide residue, one of X and Y stands for a single bond, an amino acid residue selected from the class consisting of Asp, Glu, Lys and a divalent group represented by the formula, ##STR1## (wherein n stands for an integer in the range of 1 to 17), or a peptide residue formed by peptide linkage of two to ten amino acid residues of at least one species selected from the class mentioned above and the other of X and Y stands for an amino acid residue selected from the class consisting of Asp, Glu, Lys and a divalent group represented by the formula, ##STR2## (wherein n stands for an integer in the range of 1 to 17), or a peptide residue formed by peptide linkage of two to ten amino acid residues of at least one species selected from the class mentioned above and Z stand
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: July 21, 1992
    Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and Industry
    Inventors: Masao Tanihara, Kiichiro Oka, Hideaki Yamada, Akira Kobayashi, Toshihide Nakashima, Yoshiaki Omura, Koichi Takakura
  • Patent number: 4925787
    Abstract: A monoclonal anti-idiotypic antibody specific to a human IgG.sub.1 type monoclonal antibody possessing specificity to nicotinic acetylcholine receptor; a method for the production of the aforementioned monoclonal anti-idiotypic antibody by the steps of immunizing an animal with a human IgG.sub.1 type monoclonal antibody specific to nicotinic acetylcholine receptor, collecting antibody-producing cells from the animal, fusing the collected cells with neoplastic cells, selecting from the product of fusion a hybridoma capable of producing a monoclonal anti-idiotypic antibody specific to the human IgG.sub.1 type monoclonal antibody possessing specificity to nicotinic acetylcholine receptor, propagating the selected hybridoma thereby giving rise to said monoclonal anti-idiotypic antibody, and collecting the produced monoclonal anti-idiotypic antibody; and use of the monoclonal anti-idiotypic antibody as a reagent and as an adsorbent.
    Type: Grant
    Filed: March 30, 1988
    Date of Patent: May 15, 1990
    Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and Industry
    Inventors: Masao Tanihara, Hideaki Yamada, Toshihide Nakashima, Yoshiaki Omura, Koichi Takakura
  • Patent number: 4889917
    Abstract: A peptide is disclosed which is represented by the formula:H-X-Gly-Trp-Lys-His-Trp-Val-Tyr-Tyr-Thr-Cys-Cys-Pro-Asp-Thr-Pro-Tyr-Leu-Asp -Y -Zwherein one of X and Y stands for a single bond, an amino acid residue selected from the class consisting of Asp, Glu, Lys and a divalent group represented by the formula, ##STR1## (wherein n stands for an integer in the range of 1 to 17), or a peptide residue formed by peptide linkage of two to ten amino acid residues of at least one species selected from the class mentioned above, the other of X and Y stands for an amino acid residue selected from the class consisting of Asp, Glu, Lys and a divalent group represented by the formula, ##STR2## (wherein n stands for an integer in the range of 1 to 17), or a peptide residue formed by peptide linkage of two to ten amino acid residues of at least one species selected from the class mentioned above and Z stands for a hydroxyl group or an amino group, and two cysteinyl mercapto groups in the Cys-Cys moiety may be interlinked to
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: December 26, 1989
    Assignee: Agency of Industrial Science Technology, Ministry of International Trade & Industry
    Inventors: Masao Tanihara, Kiichiro Oka, Hideaki Yamada, Akira Kobayashi, Toshihide Nakashima, Yoshiaki Omura, Koichi Takakura
  • Patent number: 4472303
    Abstract: Treatment of the blood by means of a blood purification device comprising packed, substantially spherical, smooth-surfaced, porous granules having at least 0.1 .mu.mole/m.sup.2 of the silanol group on the surface thereof, a blood inlet and a blood outlet scarcely causes decrease in leukocyte or platelet count or blood cell damage and can remove proteins from the blood by adsorption without high pressure loss.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: September 18, 1984
    Assignee: Kuraray Co., Ltd.
    Inventors: Masao Tanihara, Toshihide Nakashima, Koichi Takakura
  • Patent number: 4421684
    Abstract: A column for adsorption of blood proteins is disclosed which comprises a blood inlet and a blood outlet each with a filter, and a porous material packed between both the filters, which material has a mean pore diameter (D) of 30-3,000 amgstroms with the volume occupied by pores with diameters of 0.8D-1.2D being at least 80% of the whole pore volume. The adsorption column can eliminate specific blood proteins by selective adsorption and is useful in the treatment of autoimmune diseases and cancer, for instance.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: December 20, 1983
    Assignee: Kuraray Co., Ltd.
    Inventors: Toshihide Nakashima, Maso Tanihara, Koichi Takakura
  • Patent number: 4420395
    Abstract: Treatment of the blood by means of a blood purification device comprising packed, substantially spherical, smooth-surfaced, porous granules having at least 0.1 .mu.mole/m.sup.2 of the silanol group on the surface thereof, a blood inlet and a blood outlet scarcely causes decrease in leukocyte or platelet count or blood cell damage and can remove proteins from the blood by adsorption without high pressure loss.
    Type: Grant
    Filed: July 7, 1982
    Date of Patent: December 13, 1983
    Assignee: Kuraray Co., Ltd.
    Inventors: Masao Tanihara, Toshihide Nakashima, Koichi Takakura
  • Patent number: 4384954
    Abstract: A column for adsorption of blood proteins is disclosed which comprises a blood inlet and a blood outlet each with a filter, and a porous material packed between both the filters, which material has a mean pore diameter (D) of 30-3,000 angstroms with the volume occupied by pores with diameters of 0.8 D-1.2 D being at least 80% of the whole pore volume. The adsorption column can eliminate specific blood proteins by selective adsorption and is useful in the treatment of autoimmune diseases and cancer, for instance.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: May 24, 1983
    Assignee: Kuraray Co., Ltd.
    Inventors: Toshihide Nakashima, Maso Tanihara, Koichi Takakura
  • Patent number: 4352884
    Abstract: Carriers coated with a copolymer of a hydrophilic acrylate or methacrylate monomer and a copolymerizable unsaturated carboxylic acid or unsaturated amine are provided which are substantially free from nonspecific adsorption of proteins and the like. Due to the side-chain carboxyl or amino groups of the copolymer, these coated carriers are able to immobilize bio-active materials such as antigens, antibodies, complements and enzymes. These carriers, on which bio-active materials can be immobilized, are useful as clinical selective adsorbents, affinity-chromatographic adsorbents, selective electrodes or columns for analysis.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: October 5, 1982
    Assignee: Kuraray Co., Ltd
    Inventors: Toshihide Nakashima, Masao Tanihara, Koichi Takakura
  • Patent number: 4287177
    Abstract: The present invention provides a covering material consisting essentially of a hydrophilic, water insoluble polymer (component A), a high boiling plasticizer and/or organic solvent (component B) for said component A, and an aqueous liquid (component C). Said covering material is useful as a protective covering material for forming a film or coat on the skin and/or wound surface in the treatment of burn. The material is characterized in that film or coat formation on the skin and/or wound surface can be realized in a short time.
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: September 1, 1981
    Assignees: Kuraray Co., Ltd., Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Toshihide Nakashima, Osamu Nakaji, Koichi Takakura, Takayoshi Suzuki
  • Patent number: 4248736
    Abstract: A hemoperfusion adsorbent is provided comprising a woven or knitted fibrous carbon adsorbent material having at least one coating thereon of a hydrophilic polymer. The adsorbent carbon fabric is preferably derived from a novolak-type phenolic resin. The hydrophilic polymer will preferably comprise a polymer prepared by the polymerization of at least one monomeric acrylate or methacrylate, preferably with a copolymerizable monomer containing an epoxy moiety.
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: February 3, 1981
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshio Fuchigami, Toshihide Nakashima
  • Patent number: 4171283
    Abstract: A hemoperfusion adsorbent is provided comprising an adsorbent material containing at least one coating thereon of a hydrophilic polymer prepared by the polymerization of at least one monomeric acrylate or methacrylate with a copolymerizable monomer containing an epoxy moiety therein.In addition, a method is provided for removing air bubbles from such adsorbents comprising boiling said adsorbents in water or physiological saline, cooling said adsorbents, packing said adsorbents into a container and sterilizing the packed container by autoclaving.
    Type: Grant
    Filed: July 29, 1977
    Date of Patent: October 16, 1979
    Assignee: Kuraray Co., Ltd.
    Inventors: Toshihide Nakashima, Koichi Takakura