Inventor

SAIKAWA ISAMU

49 patents

⚠️ This page may combine multiple inventors who share the name “SAIKAWA ISAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SAIKAWA ISAMU

TOYAMA CHEMICAL CO LTD

Novel penicillins and cephalosporins and process for producing the same

Process for producing 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivatives, and processes for producing the intermediates

Cephalosporins

Cephalosporins

Novel penicillins and cephalosporins and process for producing the same

2,3 Diketo-piperazinocarbonylamino alkanoic acids and derivatives

Nicotinic acid derivatives

4-oxo-1,4-dihydronicotinic acid derivatives, salts thereof, and antibacterial agents containing the same

Cephalosporins

Novel penicillins

Novel penicillins and cephalosporins and process for producing same

Process for producing 7-(substituted)amino-3-substituted thiomethyl cephem carboxylic acids

Cephalosporins, process for producing the same, intermediates thereof and process for producing the intermediates

7α-methoxycephalosporins and pharmaceutical composition comprising the same

Novel process for producing cephalosporins

1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing same

Process for producing 7-(substituted)amino-3-substituted thiomethyl cephem carboxylic acids

Process for producing 7-(substituted)amino-3-substituted thiomethyl-Δ3 -cephem-4-carboxylic acids

Novel substances having carcinostatic and immunostimulating activity, process for preparing the same and carcinostatic agent containing the same

Bis-type penicillins and process for producing the same

Pyridone carboxylic acid derivatives and salts thereof, process for producing the same and antibacterial agents comprising the same

7α-Methoxycephalosporins

7α-Methoxy-cephalosporins

Novel process for producing a cephalosporin

7-amino-3-(pyrazinylmethyl) or (pyridazinylmethyl)-cephalosporins

Process for producing 2-(2-aminothiazol-4-yl)glyoxylic acid derivative or a salt thereof, and intermediates therefor and process for producing the intermediates

Novel 1-(4-piperidiniobenzyl)-2,3-dioxopiperazine derivatives or acid addition salts thereof

1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing same

4-[4-(Thiazolyl-amino)benzyl]-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing same

Substances having carcinostatic and immunostimulating activity

Substituted 7α-methoxy-7β[(2,3-dioxo-1-piperazinyl)carbonylaminophenylacetamido]cephalosporins

Antibacterial composition for medical use

Novel process for producing bischoline-disulfonate derivatives

Novel process for producing 2-(2-aminothiazol-4-yl)glyoxylic acid derivative or a salt thereof, and intermediates therefor and process for producing the intermediates

Antibiotic 7-(thiazolyl)-3-(pyrazinylmethyl) or (pyridazinylmethyl) cephalosporins

1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives and salts thereof

7α-Methoxycephalosporins

Process for producing 7-(D(-)-α-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-α-(4-hydroxyphenyl)acetamido)-3-(5-(1-methyl-1,2,3,4-tetrazolyl)thiomethyl)-.DELTA.3 -cephem-4-carboxylic acid and a pharmaceutically acceptable salt thereof

Process for preparing substance having carcinostatic and immunostimulating activity

Antibacterial composition for medical use

Antibacterial composition for medical use

Novel substances having antitumor and immunostimulating activity, process for preparing the same and antitumor agent containing the same

TOYAMA CHEMICAL COMPANY LTD

Pharmaceutical composition comprising extract from poison pouch contents of bee

Pharmaceutical composition comprising extract from poison pouch contents of bee useful for treating decreased immunity

TOYAMA CHEMICAL COMPANY LIMITE

1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing same

Intermediate for cephalosporin type compound

TOYOMA CHEMICAL CO LTD

Aminothiazole intermediate for a cephalosporin

HANDI PAC INC

Novel intermediates of cephalosporins and process for producing 7-(substituted or unsubstituted amino)-3-substituted methyl-Δ3 -cephem-4-carboxylic acids

TOYOMA CHEMICAL COMPANY LTD

7-(substituted or unsubstituted amino) 3-substituted methyl-3 cephem-4-carboxylic acid