Patents Assigned to Meiji Seika Kabushiki Kaisha
  • Patent number: 7138263
    Abstract: There is provided an endoglucanase enzyme, which is useful for reducing fuzz of regenerated cellulose-containing fabrics, improving the touch and appearance, color clarification, localized variation in color, reducing stiffness and using it as components of a detergent, as well as deinking waste paper and improving freeness of paper pulp. A cDNA coding for the endoglucanase enzyme NCE5 was cloned and its DNA sequence and amino acid sequence derived from it were determined.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: November 21, 2006
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Koichiro Murashima, Naomi Sumida, Akitaka Nakane, Koji Yanai, Tomoko Nishimura, Jinichiro Koga, Takeshi Murakami, Toshiaki Kono
  • Patent number: 6419972
    Abstract: There are provided a stick type expanded starch confectionery with a wave-like configuration on its surface and a process for easily manufacturing the same, which uses an extruder method. According to the process, the stick type expanded starch confectionery is obtained by adjusting amounts of water and calcium salt to an amount of starch raw material to prepare a dough, whereby fluidity of thermally treated dough extruded from a double-staged die which belongs to an extruder is controlled.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: July 16, 2002
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Shuji Akimoto, Hajime Hamada, Iwao Hachiya
  • Patent number: 5990101
    Abstract: Novel carbapenem derivatives, represented by the following formula (I), having a substituted or unsubstituted imidazo[5,1-b]thiazolium-6-ylmethyl group at the 2-position are disclosed. The compounds represented by the formula (I) have potent antibacterial activity against a wide spectrum of bacteria from Gram-positive bacteria to Gram-negative bacteria including Pseudomonas aeruginosa and, in addition, have potent antibacterial activity against various .beta.-lactamase-producing bacteria and MRSA and are very stable against DHP-1.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: November 23, 1999
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Kazuhiro Aihara, Yuko Kano, Sohjiro Shiokawa, Toshiro Sasaki, Fumihito Setsu, Yumiko Toyooka, Miyuki Ishii, Kunio Atsumi, Katsuyoshi Iwamatsu, Atsushi Tamura
  • Patent number: 5958981
    Abstract: A .gamma.-diketone compound represented by the following formula (I) and a pharmaceutically acceptable salt and solvate thereof having platelet aggregation inhibitory activity is disclosed: ##STR1## wherein B is --Z--(CH.sub.2).sub.q COOR.sup.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: September 28, 1999
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Tomoaki Miura, Eiki Shitara, Shokichi Ohuchi, Kiyoaki Katano
  • Patent number: 5883089
    Abstract: Compounds, represented by the following formula (I), having a .beta.-(substituted or unsubstituted imidazo?5,1-b!thiazolyl)vinyl group at the 3-position of the cephem ring and a salt and an ester thereof are disclosed. The compounds have antibacterial activity against a very wide spectrum of bacteria and potent antibacterial activity against Gram-positive bacteria, Gram-negative bacteria, and resistant bacteria. ##STR1## wherein X represents CH or N, R.sup.1 represents a hydrogen atom or an amino protective group, R.sup.2 represents a hydrogen atom, a C.sub.1-6 alkyl group, a C.sub.3-7 cycloalkyl group, or a hydroxy protective group, R.sup.3 is absent or represents a hydrogen atom, a salt forming cation, or a carboxyl protective group, R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, each independently represent a hydrogen atom or a C.sub.1-6 alkyl group, R.sup.7+ is absent or a cation of a C.sub.1-6 alkyl, and n is an integer of 0 to 1.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: March 16, 1999
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Eijiro Umemura, Kunio Atsumi, Katsuyoshi Iwamatsu, Atsushi Tamura
  • Patent number: 5840895
    Abstract: Compounds of formulae (II), (III), (IV) and (V) or salts thereof are intermediates for pharmacologically active tricyclic benzazepine and benzothiazepine derivatives, ##STR1## wherein R represents hydrogen, alkyl, phenylalkyl, or a protective group of a triazole ring, R.sup.1 -R.sup.5 represent hydrogen, alkyl, alkenyl, alkoxy, amino, oxim or hydroxyl, and R.sup.41 represents hydrogen, C.sub.1-6 alkyl which may be optionally substituted, or a protective group for a carboxyl group.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: November 24, 1998
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Yasuo Ohtsuka, Takashi Shishikura, Hiroko Ogino, Kenichi Fushihara, Mami Kawaguchi, Seiji Tsutsumi, Megumi Imai, Keiko Shito, Koji Tsuchiya, Junko Tanaka, Takako Iwasaki, Shigeru Hoshiko, Takashi Tsuruoka
  • Patent number: 5814636
    Abstract: A compound represented by the general formula (I) and a pharmaceutically acceptable salt and solvate thereof having an effect for inhibiting the aggregation of platelets is disclosed: ##STR1## wherein A, B and C represent independently CH.sub.2 or C.dbd.O;X and Y are different from each other, and each of them is CH or N;D is --(CH.sub.2).sub.k -- or --(CH.sub.2).sub.m --CO-- where k is an integer of 1 to 4; and m is an integer of 0 to 3;E is the following group (II) or (III): ##STR2## wherein n is an integer of 1 to 3; and Z is --W--(CH.sub.2).sub.p --COOR.sup.3 (wherein W is --O-- or a bond; p is an integer of 1 to 4; and R.sup.3 is hydrogen, lower alkyl or an ester residue which can be removed under physiological conditions); R.sup.1 is hydrogen or lower alkyl; and R.sup.2 is hydrogen atom or lower alkyl.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: September 29, 1998
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Kiyoaki Katano, Shokichi Ohuchi, Tomoaki Miura, Eiki Shitara, Masaro Shimizu, Kazue Yaegashi, Naoto Ohkura, Yasuko Isomura, Hiroyuki Iida, Midori Ishikawa, Kenji Asai, Emiko Hatsushiba
  • Patent number: 5786387
    Abstract: A compound represented by the formula (I) is disclosed. The compound of the formula (I) is useful as a fine particle drug carrier. When used as the fine particle drug carrier, the compound efficiently avoids a reticuloendothelial system and has a long circulation time in blood.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: July 28, 1998
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Hiroshi Watanabe, Kumi Taniguchi, Chikako Udagawa, Takashi Ando, Satoru Nakabayashi
  • Patent number: 5760053
    Abstract: A .gamma.-diketone compound represented by the following formula (I) and a pharmaceutically acceptable salt and solvate thereof having platelet aggregation inhibitory activity is disclosed: ##STR1## wherein B is --Z--(CH.sub.2).sub.q COOR.sup.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: June 2, 1998
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Tomoaki Miura, Eiki Shitara, Shokichi Ohuchi, Kiyoaki Katano
  • Patent number: 5698692
    Abstract: A compound represented by the general formula (I) and a pharmaceutically acceptable salt and solvate thereof having an effect for inhibiting the agglutination of platelets is disclosed: ##STR1## wherein R.sup.1 represents a group --W--(CH.sub.2).sub.i --COOR.sup.3,R.sup.2 represents a hydrogen atom or a group --W--(CH.sub.2).sub.i --COOR.sup.3 or --OR.sup.4,X represents --CH.dbd. or --N.dbd.,Y represents(i) a group --(CO).sub.k --N(R.sup.5)--Z--, wherein Z represents a bond or a group --(CH.sub.2).sub.m --CO-- or a group --(CH.sub.2).sub.m --CHR.sup.6 --,(ii) a group --(CH.sub.2).sub.m --N(R.sup.5)--(CO).sub.k --, or(iii) a group --(CO).sub.k --Het, wherein Het represents a five- or six-membered heterocyclic ring comprising a nitrogen atom,A represents(i) the following groups (II), (III) or (IV) ##STR2## B represents a bond, C.sub.1-6 alkylene or C.sub.2-6 alkenylen.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: December 16, 1997
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Kiyoaki Katano, Shokichi Ohuchi, Eiki Shitara, Masaro Shimizu, Kazue Yaegashi, Tomoaki Miura, Yasuko Isomura, Hiroyuki Iida, Midori Ishikawa, Kenji Asai, Emiko Hatsushiba, Mami Kawaguchi, Takashi Tsuruoka
  • Patent number: 5686442
    Abstract: The tricyclic benzazepine and benzothiazepine derivatives represented by the formula (I) and pharmacologically acceptable salts thereof are disclosed. ##STR1## wherein Z represents CO, --CR.sup.6 R.sup.7 -- or --S(O).sub.n, R represents hydrogen, alkyl, phenylalkyl, or a protective group of a triazole ring, R.sup.1 -R.sup.5 represent hydrogen, alkyl, alkenyl, alkoxy, amino, oxim or hydroxyl. These compounds have anti-allergic effect and are useful for the treatment and prophylaxis of allergic diseases.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: November 11, 1997
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Yasuo Ohtsuka, Takashi Shishikura, Hiroko Ogino, Kenichi Fushihara, Mami Kawaguchi, Seiji Tsutsumi, Megumi Imai, Keiko Shito, Koji Tsuchiya, Junko Tanaka, Takako Iwasaki, Shigeru Hoshiko, Takashi Tsuruoka
  • Patent number: 5663162
    Abstract: Compounds represented by the following formula (I), that is, cephem derivatives having substituted or unsubstituted imidazo[5,1-b]thiazolium-6-yl as a substituent at the 3-position of the cephem ring: ##STR1## wherein X represents CH or N, R.sup.1 represents H, alkyl, alkenyl or the like, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 represent H, alkyl, carbamoyl, amino or the like. The above compounds have excellent antibacterial activity, and useful as medicines for the treatment of various infectious diseases caused by bacteria.
    Type: Grant
    Filed: July 25, 1995
    Date of Patent: September 2, 1997
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Kunio Atsumi, Eijiro Umemura, Yuko Kano, Sohjiro Shiokawa, Toshiaki Kudo, Masaki Tsushima, Katsuyoshi Iwamatsu, Atsushi Tamura, Seiji Shibahara
  • Patent number: 5661144
    Abstract: Compounds represented by the following formula (I), that is, cephem derivatives having substituted or unsubstituted 3-(imidazo[5,1-b]thiazolium-6-yl)-1-propenyl as a substituent at the 3-position of the cephem ring: ##STR1##
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: August 26, 1997
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Masaki Tsushima, Kunio Atsumi, Katsuyoshi Iwamatsu, Atsushi Tamura
  • Patent number: 5599815
    Abstract: Compounds represented by the formula (I) and pharmacologically acceptable salts thereof: ##STR1## These compounds have little extrapyramidal effect and thus are effective as an anti-psychotic agent having few side effects.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: February 4, 1997
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Yoshimasa Fukuda, Toshiro Sasaki, Yuuko Nakatani, Yasuyuki Ichimaru, Taiichiro Imanishi
  • Patent number: 5594004
    Abstract: A compound represented by the general formula (I) and a pharmaceutically acceptable salt and solvate thereof having an effect for inhibiting the agglutination of platelets is disclosed: ##STR1## wherein R.sup.1 represents a group --W--(CH.sub.2).sub.i --COOR.sup.3,R.sup.2 represents a hydrogen atom or a group --W--(CH.sub.2).sub.i --COOR.sup.3 or --OR.sup.4,X represents --CH.dbd. or --N.dbd.,Y represents(i) a group --(CO).sub.k --N(R.sup.5)--Z--, wherein Z represents a bond or a group --(CH.sub.2).sub.m --CO-- or a group --(CH.sub.2).sub.m --CHR.sup.6 --,(ii) a group --(CH.sub.2).sub.m --N(R.sup.5)--(CO).sub.k --, or(iii) a group --(CO).sub.k -Het, wherein Het represents a five- or six-membered heterocyclic ring comprising a nitrogen atom,A represents(i) the following groups (III) or (IV) ##STR2## B represents a bond, C.sub.1-6 alkylene or C.sub.2-6 alkenylen.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: January 14, 1997
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Kiyoaki Katano, Shokichi Ohuchi, Eiki Shitara, Masaro Shimizu, Kazue Yaegashi, Tomoaki Miura, Yasuko Isomura, Hiroyuki Iida, Midori Ishikawa, Kenji Asai, Emiko Hatsushiba, Mami Kawaguchi, Takashi Tsuruoka
  • Patent number: 5449694
    Abstract: (-)-Ritodrine, that is (-)-erythro-1-(p-hydroxyphenyl)-2-[2-(p-hydroxyphenyl)ethylamino]-1-propan ol or a salt thereof substantially free from the (+)-isomer is disclosed. The compound has a strong suppressive effect on uterine contraction in comparison with (.+-.)-ritodrine and (+)-ritodrine and has the same level of toxicity as these compounds, so that it can be used as a therapeutic agent of threatened premature birth and threatened abortion as well as a therapeutic agent of dysmenorrhea having a high safety.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: September 12, 1995
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Naoki Yamazaki, Yoshimasa Fukuda, Yoshiaki Shibazaki, Tetsutarou Niizato, Isao Kosugi, Shin Yoshioka
  • Patent number: 5418171
    Abstract: The present invention relates to an apparatus for determining the presence or absence of a target analyte in a liquid sample, comprising:(i) a container capable of accommodating the liquid sample and having a transparent portion; and(ii) an insertion member which is capable of being inserted into the container comprising;a porous member which has a main surface and a reverse surface and which has on the main surface a substance capable of specifically binding to the target analyte; andan absorbent bonded to the reverse surface of the porous member;the porous member being supported in the insertion member whereby, when the insertion member is inserted into the container, the main surface can be observed from the outside of the container through the transparent portion of the vessel and the liquid sample is absorbed into the absorbent through the porous member.According to the analyzer of the present invention, the presence or absence of a target analyte in a sample can be easily determined.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: May 23, 1995
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Fumio Kimura, Naohisa Koizumi, Koichi Matsuo, Minoru Aoyagi, Kiyomi Harakawa
  • Patent number: 5399566
    Abstract: The invention provides compounds represented by the following formula (I) ##STR1## or a pharmaceutically acceptable salts thereof wherein A represents ##STR2## B represents a carboxy or tetrazolyl group; and X represents --O--, --NH-- or --S(O).sub.t --.The compounds possess angiotensin II antagonism, and may be used as an antihypertensive agent, a therapeutic agent to congestive heart failure, an antianxiety agent and a cognitive enhancing agent.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: March 21, 1995
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Kiyoaki Katano, Hiroko Ogino, Eiki Shitara, Hiromi Watanabe, Jun Nagura, Naomi Osada, Yasuyuki Ichimaru, Fukio Konno, Tomoya Machinami, Takashi Tsuruoka
  • Patent number: 5190952
    Abstract: A 4-acyloxyquinoline derivative represented by the general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a C.sub.1 -C.sub.18 alkyl, C.sub.2 -C.sub.18 alkenyl, C.sub.3 -C.sub.10 cycloalkyl which may be optionally substituted, phenylloweralkyl, phenoxyloweralkyl, aryl group, a group OR.sup.4, where R.sup.4 represents a lower alkyl or aryl group, or a group ##STR2## where X represents an oxygen or a sulphur atom; R.sup.2 represents a hydrogen atom, a lower alkyl alkyl group or a group --COOR.sup.5 where R.sup.5 represents a hydrogen atom or a lower alkyl group; R.sup.3 represents a hydrogen atom, a C.sub.1 -C.sub.10 alkyl or C.sub.2 -C.sub.10 alkenyl group, provided that R.sup.1 does not represent OR.sup.4 when R.sup.2 is a hydrogen atom and R.sup.3 is methyl; R.sup.2 and R.sup.3 together represent a group (CH.sub.2).sub.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: March 2, 1993
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Nobuto Minowa, Tomoya Machinami, Seiji Shibahara, Keiichi Imamura, Michiaki Iwata, Masaru Shimura, Shigeharu Inouye
  • Patent number: 5171746
    Abstract: A thiazole or imidazole derivative having the general formula (I): ##STR1## wherein: R.sup.1 and R.sup.2, which may be the same or different, each independently represent a hydrogen atom, or a phenyl or heteroaryl group, or R.sup.1 and R.sup.2 may together form a benzene ring which may be optionally substituted by a halogen atom or a lower alkyl optionally substituted by a halogen atom, lower alkoxy or nitro group;A represents a sulfur atom or --NH--;B represents a lower alkoxy group optionally substituted by a halogen atom; a five- or six-membered saturated heterocyclic ring containing one nitrogen or oxygen atom which ring may be optionally substituted; a six-membered saturated heterocyclic ring containing one oxygen atom plus one nitrogen atom; a group --XR.sup.3 where X represents a group --NR.sup.4 wherein R.sup.3 and R.sup.4, which may be the same or different, each independently represent a lower alkyl group; or a group --NHC(.dbd.Y)R.sup.5 where Y represents an oxygen or sulfur atom or a group .dbd.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: December 15, 1992
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Tomoya Machinami, Kazue Yasufuku, Seiji Shibahara, Yasukatsu Yuda, Fumiya Hirano