Patents by Inventor Kyoichiro Shibatani
Kyoichiro Shibatani 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: 6732734Abstract: 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: GrantFiled: April 27, 2001Date of Patent: May 11, 2004Assignee: Kuraray Co., Ltd.Inventors: Masayasu Ogushi, Kyoichiro Shibatani, Toshihide Nakashima, Motohiro Fukuda, Toshiyuki Zento, Yasuzo Kirita, Yukihiro Fujieda, Chuck Bates
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Publication number: 20020160134Abstract: 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: ApplicationFiled: April 27, 2001Publication date: October 31, 2002Applicant: Kuraray Co., Ltd.Inventors: Masayasu Ogushi, Kyoichiro Shibatani, Toshihide Nakashima, Motohiro Fukuda, Toshiyuki Zento, Yasuzo Kirita, Yukihiro Fujieda, Chuck Bates
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Patent number: 4409980Abstract: A gas sensor which includes a reference electrode deposited on the surface of a pH-sensitive transducer having a gate-insulated field-effect transistor (FET) structure and adjacent a gate region of the FET, the transducer and reference electrode being housed in a flexible tube so that the gate region of the FET is located in an opening provided at the front end of or on the side wall of the tube. Lead wires connected to the FET and to the reference electrode extend along the tube. Between the inner wall of the tube and lead-wire FET bonding part is placed electrical insulation resin filling to stop the tube. A hydrophilic polymer layer containing electrolyte is provided which at least extends over both the FET gate region and a part of the reference electrode. A gas permeable membrane is laid over the polymer layer.Type: GrantFiled: August 17, 1981Date of Patent: October 18, 1983Assignee: Kuraray Company, LimitedInventors: Makoto Yano, Kiyoo Shimada, Kyoichiro Shibatani
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Patent number: 4386912Abstract: A cement composition which comprises a filler, a binder to be used in admixture with the filler, and a curing agent for polymerizing the binder, which is characterized by that the binder comprises, based on the total weight of the binder, 20-100% by weight of (A) a free-radical polymerizable monomer of the following formula: ##STR1## wherein R is a hydrogen atom or a methyl group and X is an organic residue having 1-48 carbon atoms, and 0-80% by weight of (B) a mono-, di- or tri-functional free-radical polymerizable monomer which is copolymerizable with the above monomer (A) is disclosed. By using the above binder, the filler is firmly bonded with each other and gives a cured product having high compressive strength and abrasion resistance. The cement composition is especially useful as dental restorative materials.Type: GrantFiled: April 26, 1982Date of Patent: June 7, 1983Assignee: Kuraray Company LimitedInventors: Yoshinori Nagase, Kyoichiro Shibatani, Junichi Yamauchi, Ikuo Omura
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Patent number: 4385274Abstract: An electrical circuitry for use in the measurement of the activity of ions in an electrolyte solution carried out by the use of an ion-sensitive field-effect transistor transducer having a gate or ion sensitive layer, a source and a drain. The measurement is carried out by adjusting the drain current flowing through the field-effect transistor to a predetermined value such that the temperature dependency of the electroconductivity of the channel of the transistor becomes equal to the sum of the temperature dependency of the potential at an interface between a reference electrode and the electrolyte solution and the temperature dependency of the potential at an interface between the ion-sensitive layer and the electrolyte solution.Type: GrantFiled: April 27, 1981Date of Patent: May 24, 1983Assignee: Kuraray Co., Ltd.Inventors: Kiyoo Shimada, Hayami Yoshimochi, Makoto Yano, Kyoichiro Shibatani
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Patent number: 4368043Abstract: An adhesive cementing agent is provided for the hard tissues of the human body, which contains a phosphoric or phosphonic acid ester compound containing at least one polymerizable functional group and either a group of the formula ##STR1## or a group of the formula ##STR2## or a high molecular weight compound obtainable by polymerizing the compound either alone or as a comonomer unit. This adhesive cementing agent has a high affinity for the tooth, bone and other hard tissues of the human body and enjoys prolonged stability in wet environments.Type: GrantFiled: May 14, 1980Date of Patent: January 11, 1983Assignee: Kuraray Company, LimitedInventors: Junichi Yamauchi, Eiichi Masuhara, Nobuo Nakabayashi, Kyoichiro Shibatani, Tooru Wada
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Patent number: 4347174Abstract: A cement composition which comprises a filler, a binder to be used in admixture with the filler, and a curing agent for polymerizing the binder, which is characterized by that the binder comprises, based on the total weight of the binder, 20-100% by weight of (A) a free-radical polymerizable monomer of the following formula: ##STR1## wherein R is a hydrogen atom or a methyl group and X is an organic residue having 1-48 carbon atoms, and 0-80% by weight of (B) a mono-, di- or tri-functional free-radical polymerizable monomer which is copolymerizable with the above monomer (A) is disclosed. By using the above binder, the filler is firmly bonded with each other and gives a cured product having high compressive strength and abrasion resistance. The cement composition is especially useful as dental restorative materials.Type: GrantFiled: April 21, 1981Date of Patent: August 31, 1982Assignee: Kuraray Company, LimitedInventors: Yoshinori Nagase, Kyoichiro Shibatani, Junichi Yamauchi, Ikuo Omura
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Patent number: 4347233Abstract: A caries detector, comprising a solution of a dye selected from the group consisting of Phloxine B (CI 45410), Phloxine BK (the corresponding dipotassium salt of CI 45410), Acid Red (CI 45100), Fast Acid Magenta (CI 17200), Fast Green FCF (CI 42053) and Rhodamine B (CI 45170) in a solvent.Type: GrantFiled: November 29, 1979Date of Patent: August 31, 1982Assignee: Kuraray Company, LimitedInventors: Junichi Yamauchi, Kyoichiro Shibatani, Eiji Ikeguchi, Ikuo Omura, Yoshinori Nagase
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Patent number: 4302381Abstract: The present invention provides a dental material comprising a polymerizable methacrylate monomer mixture and a curing agent, said polymerizable methacrylate monomer mixture containing a compound represented by the formula ##STR1## wherein R is H or methyl and n is integer of 1-4, in an amount of 5-50% by weight based on the whole polymerizable monomer mixture. Said dental material is useful as a filling material, a dental adhesive primer, and a pit and fissure sealant.Type: GrantFiled: August 17, 1979Date of Patent: November 24, 1981Assignee: Kuraray Co., Ltd.Inventors: Ikuo Omura, Junichi Yamauchi, Yoshinori Nagase, Kyoichiro Shibatani
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Patent number: 4279795Abstract: Materials for forming a hydrogel when contacted with water having improved anti-thrombogenic properties and a highly improved mechanical strength are obtained by the copolymerization of a free radical-polymerizable vinyl monomer capable of forming a hydrophilic polymer and a hydrophobic macromolecular compound having a chain-terminated polymerizable double bond and a molecular weight of 1,000 to 100,000.Type: GrantFiled: December 28, 1973Date of Patent: July 21, 1981Assignee: Kuraray Co., Ltd.Inventors: Shuzo Yamashita, Kyoichiro Shibatani, Kiochi Takakura, Kiyokazu Imai
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Patent number: 4273636Abstract: A chemical sensitive field effect transistor transducer is provided having a semipermeable membrane on the surface of a chemical selective system overlying an insulated gate field effect transistor. Such a field effect transistor transducer is effective for the measurement of chemical constituents of factory waste water containing micro-particles, saliva or blood containing proteins, etc., where conventional devices give unreliable results.Type: GrantFiled: May 19, 1978Date of Patent: June 16, 1981Inventors: Kiyoo Shimada, Makoto Yano, Kyoichiro Shibatani, Tsutomu Makimoto
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Patent number: 4269682Abstract: A reference electrode of an insulated gate field effect transistor having the surface of the gate region thereof coated with a hydrophobic organic polymer membrane. Since this reference electrode is much smaller in size than conventional reference electrodes, an integrated measurement system can easily be constructed by using this reference electrode. This measurement system is especially effective for measuring various ions in the living body.Type: GrantFiled: December 11, 1978Date of Patent: May 26, 1981Assignees: Kuraray Co., Ltd., Tadayuki MatsuoInventors: Makoto Yano, Kiyoo Shimada, Kyoichiro Shibatani, Tsutomu Makimoto
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Patent number: 4259117Abstract: A dental filling agent is provided, which contains a phosphoric or phosphonic acid ester compound containing at least one polymerizable functional group and either a group of the formula ##STR1## or a group of the formula ##STR2## or a high molecular weight compound obtainable by polymerizing the compound either alone or as a comonomer unit. This agent has a high bonding affinity for the tooth and enjoys prolonged stability in wet environments.Type: GrantFiled: August 25, 1978Date of Patent: March 31, 1981Assignee: Kuraray Co., Ltd.Inventors: Junichi Yamauchi, Eiichi Masuhara, Nobuo Nakabayashi, Kyoichiro Shibatani, Tooru Wada
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Patent number: 4259075Abstract: A tooth cavity is filled by applying to the walls of the tooth cavity a lining composition comprising a phosphoric or phosphonic acid ester compound containing at least one radical polymizerable vinyl group and at least one ##STR1## group, wherein said lining composition contains said phosphoric or phosphonic acid ester compound in a proportion of not less than 0.1 weight percent, as phosphorus, and then filling the remainder of the cavity with a dental filling material which comprises a polymerizable monomer, a filler and a curing agent.Type: GrantFiled: September 24, 1979Date of Patent: March 31, 1981Assignee: Kuraray Co., Ltd.Inventors: Junichi Yamauchi, Eiichi Masuhara, Nobuo Nakabayashi, Kyoichiro Shibatani, Tooru Wada
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Patent number: 4222780Abstract: An adhesive composition is provided for hard human tissues which contains 0.1 to 10 weight percent as phosphorus of a phosphinic acid compound having the ##STR1## structure. This adhesive composition provides an intimate bond with hard human tissues such as tooth, bone, etc. and has prolonged stability under wet conditions.Type: GrantFiled: April 21, 1978Date of Patent: September 16, 1980Assignee: Kuraray Co., Ltd.Inventors: Kyoichiro Shibatani, Ikuo Omura, Junichi Yamauchi
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Patent number: 4182035Abstract: An adhesive composition is provided for the hard tissues of the human body which comprises (1) a radical-polymerizable monomer and a curing system comprising (2) a peroxide, (3) an amine (or its salt) and (4) a salt of a sulfinic acid. The composition is available in two independent packages, one of which contains (1) and (2) the other package (3) and (4). Alternatively, one package contains (1) and (3) the other package (2) and (4).Type: GrantFiled: August 31, 1977Date of Patent: January 8, 1980Assignee: Kuraray Company LimitedInventors: Junichi Yamauchi, Kunitake Yamada, Kyoichiro Shibatani