Sumitomo Chemical Company, Limited

Asahi Glass Company, Limited

Kao Soap Company, Ltd.

Smithkline Corporation

Tokai Carbon Company, Ltd.

Hisao Yamamoto

Shigeho Inaba

Kikuo Sasajima

Isamu Maruyama

Michihiro Yamamoto

Masaru Nakao

Junki Katsube

Masao Koshiba

Shigenari Katayama

Kikuo Ishizumi

Kazuo Mori

Keiichi Ono

Yoshiaki Takebayashi

Toshio Atsumi

Toshiyuki Hirohashi

Kenji Kobayashi

Makoto Sunagawa

Atsuyuki Kojima

Hiromi Sato

Yoshito Kameno

Mitsuhiro Akatsu

Shigeaki Morooka

Tsuyoshi Kobayashi

Yoshiharu Kume

Takahiro Izumi

Masaru Fukui

Hiroyuki Mizote

Masaharu Takayama

Michio Kimura

Toshiaki Komatsu

Shigeo Ogino

Akihiko Sugie

Katsumi Tamoto

Hiromi Shimomura

Yoshihiro Tanaka

Yoshinori Takashima

Toshitsugu Fukumaru

Tadashi Okamoto

Toshiya Inukai

Yoshihiko Koga

Shuichi Harada

Hiroshi Noguchi

Yuzo Tarumi

Clifton A Baile

Nobuo Kageyama

Fumiaki Saito

Koji Furukawa

Yasuo Motoike

Takeshi Nakajima

Roger G Parish

Takeshi Akase

Shinichi Kaneko, Deceased

Izumi Yanagihara

Yoshio Funato

Toshio Nakajima

Hiroshi Awata

Shigeru Sakai

Tsunemasa Irie

Sumio Kitagawa

A grinding wheel for polishing, which comprises a grinding substrate and diamond-containing resin fibers implanted in the substrate in a form of a brush.

Grinding wheel for polishing and polishing method employing it

A jig used for heat treatment made from an SiC-coated silicon carbide material, wherein the SiC film is coated by the CVD method on a silicon carbide matrix in which silicon has been impregnated and wherein there are no pores with a diameter of 2 .mu.m or larger in the outer layer of the matrix within 200 .mu.m from the interface of the SiC film and the silicon carbide matrix when observed by a scanning electron microscope at a magnification of 400 times. The jig is manufactured by producing an SiC film on the surface of a silicon carbide matrix in which silicon has been impregnated by introducing a raw material compound for producing the SiC film and forming the SiC film at a temperature from 1000.degree. C. to 1290.degree. C. under a pressure from 500 to 760 Torr in a non-oxidative atmosphere. The jig exhibits superior resistance to high temperature heating cycles and excellent high thermal shock resistance required for heat treatment in semiconductor manufacturing.

Jig for heat treatment and process for fabricating the jig

A radius of 0.1-1 mm is provided at a corner between a bottom of each of semiconductor wafer inserting and supporting grooves and a base of a supporting piece between the supporting groove and a supporting groove adjacent thereto, which are formed in bars connecting upper and lower end plates of a vertical wafer boat.

Vertical wafer boat

Conjugated ketone compounds of the formula: ##STR1## wherein Ar is naphthyl, furyl, thienyl, or phenyl optionally bearing one or more substituents selected from the group consisting of chlorine, bromine, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, trifluoromethyl and methylenedioxy, R.sub.1 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.5 alkenyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.7 -C.sub.8 aralkyl or adamantyl, R.sub.2 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.5 alkenyl or C.sub.3 -C.sub.6 cycloalkyl, or when R.sub.1 and R.sub.2 are taken together with the nitrogen atom to which they are attached, they form a heterocyclic amino group containing up to 8 carbon atoms, A is straight or branched C.sub.1 -C.sub.3 alkylene, N-[4-(p-chlorophenyl)-4-oxo-2-trans-butenyl]morpholine and N-[4-(p-methoxyphenyl)-4-oxo-2-trans-butenyl]piperidine being excluded, and their non-toxic salts, which are useful as blood platelet anti-aggregative agents.

Conjugated ketone compounds in preventing platelet thrombosis

2(1H)-Quinazolinone and quinazolinethione derivatives having excellent pharmacological activities are produced in high yield with high purity by heating the corresponding 3,4-dihydro-2(1H)-quinazolinone or quinazolinethione derivatives together with sulfur in an inert solvent.

Process for preparing 2(1H)-quinazolinone derivatives

Novel 9-aminoalkyl-methanoanthracenes of the formula: ##STR1## wherein A is C.sub.1 -C.sub.4 alkylene or C.sub.3 -C.sub.4 alkenylene and R.sub.1 and R.sub.2 are each hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl, C.sub.3 -C.sub.6 cycloalkyl(C.sub.1 -C.sub.3)alkyl, ar(C.sub.1 -C.sub.3)alkyl or polyhalo(C.sub.2 -C.sub.4)alkyl or, when taken together with the adjacent nitrogen atom, they may form a 5 to 7-membered nitrogen-containing heterocyclic ring which may contain an additional hetero atom, and their non-toxic salts, which are useful as anti-anxiety, anti-depressant, major tranquilizer, anti-histamine and anti-allergy drugs and can be prepared through a novel key intermediate, i.e. 9-formyl-9,10-dihydro-9,10-methanoanthracene, by various methods.

9-Formyl-9,10-dihydro-9,10-methanoanthracene

A new class of 4-homoisotwistane derivatives of the formula, ##STR1## wherein R.sub.1 is a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group, and R.sub.2 is an alkyl group, a phenyl group which may be either unsubstituted or substituted with a C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, nitro group or a halogen atom (hereinafter referred to as 'an optionally substituted phenyl group'), a group of the formula, --A--OH in which A is a C.sub.1 -C.sub.3 alkylene group; a group of the formula, --A--B in which A is as defined as above and B is a halogen atom, or a group of the formula, ##STR2## in which A is as defined above and R.sub.3 and R.sub.4 are independently a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group or R.sub.3 and R.sub.4 may, when taken together with the adjacent nitrogen atom to which R.sub.3 and R.sub.4 are linked, form pyrrolidine, piperidine, morpholine, phthalimide or piperazine, which have been found to possess potent antiviral activity, are prepared, for example by reacting a compound of the formula, ##STR3## wherein R.sub.1 is as defined above and X is halogen, with a compound of the formula,

4-Homoisotwistane derivatives

Butyrophenone compounds having excellent psychotropic activities represented by the formula: ##STR1## wherein R.sup.1 is a halogen atom, R.sup.2 is a lower alkyl group, and Z is a group of either one of the formulae: ##STR2## (wherein the dotted line indicates the optional presence of an additional single bond linkage, R.sup.3 is a hydrogen atom or a hydroxyl group but only when said additional single bond linkage is not present and R.sup.4 is a hydrogen atom or a phenyl or benzyl group optionally substituted with one or two substituents selected from the group consisting of halogen, lower alkyl, lower alkoxy and trifluoromethyl on the benzene ring (except monohalophenyl)), ##STR3## (wherein the dotted line indicates the optional presence of an additional single bond linkage, R.sup.5 is a hydrogen atom or a lower alkyl group and R.sup.6 and R.sup.7 are each a hydrogen atom, a halogen atom or a lower alkyl group), ##STR4## (wherein R.sup.8 is a hydrogen atom or a lower alkyl group and R.sup.9 is a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group), ##STR5## (wherein R.sup.10 is a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a trifluoromethyl group), or ##STR6##

Butyrophenone compounds

There are provided compounds of the formula: ##STR1## wherein R is an adamantyl group, or a phenyl group unsubstituted or substituted with a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halogen atom, a nitro group, a cyano group, a methylenedioxy group or an acetamido group, useful as anti-transplanted-tumor agents and immunosuppressants.

5-Carbamoyl imidazoles

A method for preventing gastro-intestinal ulcer caused by a non-steroidal anti-inflammatory agent, which comprises administering an effective amount of a quinazolinone of the formula, ##STR1## wherein R.sub.1 is C.sub.1-3 alkyl, cyclopropylmethyl or 2,2,2-trifluoroethyl, R.sub.2 is halogen, C.sub.1-3 alkyl or C.sub.1-3 alkoxy, and R.sub.3 is phenyl or thienyl, or a non-toxic pharmaceutically acceptable salt thereof in combination with a pharmaceutically effective amount of the non-steroidal anti-inflammatory agent.

Method for the prevention of gastro-intestinal ulcer caused by a

2-Substituted-2'-methyl-6,7-benzomorphan derivatives of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or C.sub.1 -C.sub.3 alkyl; and R.sub.3 is hydrogen, halogen or C.sub.1 -C.sub.3 alkyl, and pharmaceutically acceptable salts thereof, which are useful as non-addicting analgesics with sedative effects, are prepared by the reaction of a 6,7-benzomorphan derivative of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are as defined above, with a reactive derivative of an alcohol compound of the formula: ##STR3## wherein X is an optionally protected carbonyl group; and R.sub.3 is as defined above, optionally followed by the elimination of the protective group of the carbonyl group, or by the oxidation of a 6,7-benzomorphan derivative of the formula: ##STR4## wherein R.sub.1, R.sub.2 and R.sub.3 are as defined above.

Analgesic benzomorphan derivatives

Butyrophenone compounds having excellent psychotropic activity and represented by the formula: ##STR1## wherein Z is defined hereinbelow.

Psychotropic .gamma.-(heterocyclic substituted) butyrophenones

Spiro amine derivatives having excellent antihypertensive activity and central nervous system depressant activity, and represented by the formula: ##STR1## and their preparation and use.

Spiro-4'-piperidine compounds and their pharmaceutical compositions

Antiviral agents containing an effective amount of 1-amino-2,4-ethanobicyclo[3,3,1]nonane or salts thereof which are effective for the treatment or prevention of infectious diseases caused by herpes or influenza virus.

Antiviral agent

Novel 9-aminoalkyl-methanoanthracenes of the formula: ##STR1## wherein A is C.sub.1 -C.sub.4 alkylene or C.sub.3 -C.sub.4 alkenylene and R.sub.1 and R.sub.2 are each hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl, C.sub.3 -C.sub.6 cycloalkyl(C.sub.1 -C.sub.3)alkyl, ar(C.sub.1 -C.sub.3)alkyl or polyhalo(C.sub.2 -C.sub.4)alkyl or, when taken together with the adjacent nitrogen atom, they may form a 5 to 7-membered nitrogen-containing heterocyclic ring which may contain an additional hetero atom, and their non-toxic salts, which are useful as anti-anxiety, anti-depressant, major tranquilizer, anti-histamine and anti-allergy drugs and can be prepared through a novel key intermediate, i.e., 9-formyl-9,10-dihydro-9,10-methanoanthracene, by various methods.

Organic tricyclic compounds

Growing community of inventors

Nishinomiya, Japan

Hisao Yamamoto