Patents by Inventor Yoshio Arakawa

Yoshio Arakawa 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: 7511144
    Abstract: Reverse hydroxamic acid derivatives having specific structure represented by a general formula (Ia): (wherein A is a hydrogen atom or the like; Ar1 is an arylene or the like; Ar2 is an optionally substituted aryl, a heteroaryl or the like; R1 is a hydrogen atom, an alkyl or the like; R2a is a substituted cycloaryl, a heterocycloaryl or the like) and a general formula (I): (wherein A, Ar1, Ar2, and R1 are the same as defined above and R2 is an hydrogen atom, R2a or the like) and salts thereof, which have TNF-? converting enzyme (TACE) inhibitory activity.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: March 31, 2009
    Assignee: Kaken Pharmaceutical Co., Ltd.
    Inventors: Masanao Shimano, Noriyuki Kamei, Tomohiro Tanaka, Tatsuhiro Harada, Makoto Haino, Akihiko Okuyama, Yoshio Arakawa, Yoshiko Murakami
  • Publication number: 20040242928
    Abstract: Reverse hydroxamic acid derivatives having specific structure represented by a general formula (Ia): 1
    Type: Application
    Filed: March 4, 2004
    Publication date: December 2, 2004
    Inventors: Masanao Shimano, Noriyuki Kamei, Tomohiro Tanaka, Tatsuhiro Harada, Makoto Haino, Akihiko Okuyama, Yoshio Arakawa, Yoshiko Murakami
  • Patent number: 4783723
    Abstract: An electric double-layer capacitor comprises a gasket encircling a pair of polarizable electrodes provided on opposite sides of a separator, and a pair of collectors provided on outer sides of the polarizable electrodes and sealed to the gasket. The gasket is formed of a base of vulcanized rubber and resin layers obtained by fusion-welding polyolefin resin on both surfaces of the base, and the collectors are heat-sealed to the gasket.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: November 8, 1988
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koichi Watanabe, Michinobu Maesaka, Michihiro Murata, Yoshio Arakawa
  • Patent number: 4713459
    Abstract: A novel compound of the formula, ##STR1## wherein R denotes a lower perfluoroalkyl group, l is an integer of 3 or 4, n+m is an integer of 2 or 3, provided that n may be zero, and at least one of ring A and ring B may be substituted by a lower perfluoroalkyl group, prepared by reacting the corresponding perhydro compound with fluorine is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: December 15, 1987
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Tadakazu Suyama
  • Patent number: 4654337
    Abstract: A novel compound of the formula, ##STR1## wherein k is zero or an integer of 1 to 2, j is an integer of from 1 or 3, l and m are each zero or an integer of from 1 to 3, and n is an integer of from 1 to 4, the rings A, B and C being optionally substituted with at least one trifluoromethyl group or tetrafluoroethyl group is prepared by reacting the perhydro compound corresponding thereto with fluorine. The compound is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: March 31, 1987
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Yoshihisa Inoue, Youichiro Naito, Tadakazu Suyama
  • Patent number: 4613605
    Abstract: A novel compound of the formula, ##STR1## wherein k is zero or an integer of 1 to 2, j is an integer of from 1 or 3, l and m are each zero or an integer of from 1 to 3, and n is an integer of from 1 to 4, the rings A, B and C being optionally substituted with at least one trifluoromethyl group or tetrafluoroethyl group is prepared by reacting the perhydro compound corresponding thereto with fluorine. The compound is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: September 23, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Yoshihisa Inoue, Youichiro Naito, Tadakazu Suyama
  • Patent number: 4605786
    Abstract: A perfluoroether compound having the following formula is useful as a thermostable, inert solvent and inter alia as an oxygen carrier in an artificial blood or infusion fluid. ##STR1## wherein Rf.sub.1 and Rf.sub.2 are different from each other and are selected from the group of a C.sub.1 or C.sub.3 perfluoroalkyl group which may be interrupted by an oxygen atom, and a C.sub.5 -C.sub.7 perfluorocycloalkyl group, and n and n' are zero or an integer of 1; one of Rf.sub.1 and Rf.sub.2 being the C.sub.5 -C.sub.7 perfluorocycloalkyl group and the total number of carbon atoms being 9-11 inclusive.
    Type: Grant
    Filed: December 20, 1983
    Date of Patent: August 12, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Yoshihisa Inoue, Taizo Ono, Chikara Fukaya, Yoshio Arakawa, Youichiro Naito, Koichi Yamauchi, Tadakazu Suyama
  • Patent number: 4605650
    Abstract: A novel compound of the formula, ##STR1## wherein k is zero or an integer of 1 to 2, j is an integer of from 1 to 3, l and m are each zero or an integer of from 1 to 3, and n is an integer of from 1 to 4, the rings A, B and C being optionally substituted with at least one trifluoromethyl group or tetrafluoroethyl group is prepared by reacting the perhydro compound corresponding thereto with fluorine. The compound is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: August 12, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Yoshihisa Inoue, Youichiro Naito, Tadakazu Suyama
  • Patent number: 4604385
    Abstract: A novel compound of the formula, ##STR1## wherein k is zero or an integer of 1 to 2, j is an integer of from 1 or 3, l and m are each zero or an integer of from 1 to 3, and n is an integer of from 1 to 4, the rings A, B and C being optionally substituted with at least one trifluoromethyl group or tetrafluoroethyl group is prepared by reacting the perhydro compound corresponding thereto with fluorine. The compound is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: August 5, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Yoshihisa Inoue, Youichiro Naito, Tadakazu Suyama
  • Patent number: 4599343
    Abstract: A perfluorobicyclo compound of the general formula: ##STR1## wherein either or both of Ring A and Ring B may optionally be substituted with lower perfluoroalkyl group(s) and m and n each represent 3 or 4.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: July 8, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Tadakazu Suyama
  • Patent number: 4596810
    Abstract: A perfluorobicyclo compound of the general formula: ##STR1## wherein either or both of Ring A and Ring B may optionally be substituted with lower perfluoroalkyl group(s) and m and n each represent 3 or 4.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: June 24, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Tadakazu Suyama
  • Patent number: 4591599
    Abstract: A perfluorobicyclo compound of the general formula: ##STR1## wherein either or both of Ring A and Ring B may optionally be substituted with lower perfluoroalkyl group (s) and m and n each represent 3 or 4.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: May 27, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Tadakazu Suyama
  • Patent number: 4591593
    Abstract: A novel compound of the formula, ##STR1## wherein R denotes a lower perfluoroalkyl group l is an integer of 3 or 4, n+m is an integer of 2 or 3, provided that n may be zero, and at least one of ring A and ring B may be substituted by a lower perfluoroalkyl group, prepared by reacting the corresponding perhydro compound with fluorine is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: May 27, 1986
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Isuda, Taizo Ono, Yoshio Arakawa, Tadakazu Suyama
  • Patent number: 4542147
    Abstract: A novel compound of the formula, ##STR1## wherein k is zero or an integer of 1 to 2, j is an integer of from 1 to 3, l and m are each zero or an integer of from 1 to 3, and n is an integer of from 1 to 4, the rings A, B and C being optionally substituted with at least one trifluoromethyl group or tetrafluoroethyl group is prepared by reacting the perhydro compound corresponding thereto with fluorine. The compound is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: September 17, 1985
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Yoshihisa Inoue, Youichiro Naito, Tadakazu Suyama
  • Patent number: 4535085
    Abstract: A perfluorotricyclic amine compound which is usable as an oxygen carrier in an artificial blood, represented by the general formula ##STR1## wherein R denotes a perfluoroalkyl group having 1-4 carbon atoms; the ring A denotes a five- or six-membered ring, the ring B denotes a five-, six- or seven-membered ring, the ring C denotes a five- or six-membered ring any one of the rings A, B and C optionary being substituted by one or more lower perfluoroalkyl group in addition to the above-mentioned substituent R; and further f, g, h, i, j and k denote integers appropriately selected to construct the above-mentioned size of rings A, B, and C; is prepared by reacting the corresponding perhydrotricyclic amine with fluorine.
    Type: Grant
    Filed: March 29, 1983
    Date of Patent: August 13, 1985
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Yoshihisa Inoue, Youichiro Naito, Tadakazu Suyama
  • Patent number: 4534978
    Abstract: Perfluorocycloamines represented by the general formula: ##STR1## wherein either or both of ring A and ring B may be substituted with lower perfluoroalkyl group(s), m and n are independently 4, 5, or 6 and Z is a perfluoroalkylene group or a mere bond.
    Type: Grant
    Filed: July 24, 1984
    Date of Patent: August 13, 1985
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Tadakazu Suyama
  • Patent number: 4530926
    Abstract: A novel compound of the formula, ##STR1## wherein k, j, l and m are zero or an integer of from 1 to 3, and n is an integer of from 1 to 3, the rings A, B and C being optionally substituted with at least one trifluoromethyl group, prepared by reacting the corresponding perhydro compound with fluorine is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: July 23, 1985
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Yoshihisa Inoue, Youichiro Naito, Tadakazu Suyama
  • Patent number: 4526969
    Abstract: A perfluorobicyclo compound of the general formula: ##STR1## wherein either or both of Ring A and Ring B may optionally be substituted with lower perfluoroalkyl group(s) and m and n each represent 3 or 4.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: July 2, 1985
    Assignee: The Green Cross Corporation
    Inventors: Kazumasa Yokoyama, Chikara Fukaya, Yoshio Tsuda, Taizo Ono, Yoshio Arakawa, Tadakazu Suyama
  • Patent number: 4442037
    Abstract: Complexes of albumin combined with organic dibasic acid half esters, such as those of succinic acid and phthalic acid, of 7-hydroxycholesterol are soluble in water and have excellent immunosuppressive and anti-inflammatory action.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: April 10, 1984
    Inventors: Yoshio Arakawa, Atsuyuki Takanabe, Yahiro Uemura, Satoshi Funakoshi, Tadakazu Suyama
  • Patent number: 4433360
    Abstract: A tubular ceramic capacitor in which a lead terminal for leading out an internal electrode is formed of a Dumet wire, the internal electrode and an external electrode are plated to be formed at the inner and outer surfaces of a tubular ceramic dielectric except for both end faces thereof respectively, the lead terminal of the Dumet wire having a diameter substantially equal to a diameter of an inner bore of the dielectric where the internal electrode is formed and being inserted into the bore substantially throughout the whole length thereof so as to be fixedly soldered, and a metallic cap terminal having an inner diameter substantially equal to an outer diameter of the dielectric and a lead wire projecting from the outer surface of the closed end of the cap terminal, is fitted onto the dielectric in relation of contacting with the external electrode, thereby reducing an amount of solder used for mounting the lead terminal, thus making it possible to prevent the internal electrode from peeling off.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: February 21, 1984
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kikuo Wakino, Yoshio Arakawa