P

Inventor

KASAI MASAJI

JP43 patents
⚠️ This page may combine multiple inventors who share the name “KASAI MASAJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KYOWA HAKKO KOGYO KK

41 patents
US5084468AJan 28, 1992

Dc-88a derivatives

KYOWA HAKKO KOGYO KK156 citations99
US4877776AOct 31, 1989

K-252 compounds

KYOWA HAKKO KOGYO KK51 citations96
US4691024ASep 1, 1987

New mitomycin derivatives, preparation thereof and pharmaceutical compositions containing them

KYOWA HAKKO KOGYO KK87 citations96
US5117006AMay 26, 1992

Dc-88a derivatives useful as antitumor agents

KYOWA HAKKO KOGYO KK43 citations92
US5138059AAug 11, 1992

Dc-89 compounds and process for their preparation

KYOWA HAKKO KOGYO KK44 citations91
US5380934AJan 10, 1995

Process for producing alanylgutamine

KYOWA HAKKO KOGYO KK25 citations89
US5468474ANov 21, 1995

N-acylglutamine derivatives and cosmetic compositions

KYOWA HAKKO KOGYO KK18 citations81
US5952355ASep 14, 1999

Propenone derivatives

KYOWA HAKKO KOGYO KK18 citations80
US5068349ANov 26, 1991

Mitomycin derivatives

KYOWA HAKKO KOGYO KK8 citations74
US4992551AFeb 12, 1991

DC-52 derivatives

KYOWA HAKKO KOGYO KK5 citations74
US4849136AJul 18, 1989

Process for producing 7-amino-6-demethyl-6-deoxytetracycline

KYOWA HAKKO KOGYO KK10 citations74
US4395558AJul 26, 1983

9-Epi-mitomycin B and D compounds

KYOWA HAKKO KOGYO KK15 citations73
US4374774AFeb 22, 1983

Mitomycins

KYOWA HAKKO KOGYO KK6 citations73
US4522812AJun 11, 1985

Novel physiologically active substance K-4, a process for preparation thereof and a pharmaceutical composition containing the same

KYOWA HAKKO KOGYO KK7 citations71
US5550283AAug 27, 1996

Process for producing alanylglutamine

KYOWA HAKKO KOGYO KK10 citations70
US5071984ADec 10, 1991

Dc-52 derivatives

KYOWA HAKKO KOGYO KK2 citations63
US5011854AApr 30, 1991

Hydroxamic acid derivatives and use thereof in combatting lipoxygenase-mediated diseases

KYOWA HAKKO KOGYO KK5 citations63
US4880825ANov 14, 1989

Mitomycin derivatives

KYOWA HAKKO KOGYO KK6 citations63
US4771068ASep 13, 1988

Mitomycin derivatives having anti-tumor and antibacterial utility

KYOWA HAKKO KOGYO KK3 citations63
US5334611AAug 2, 1994

6-ethyl mitomycin derivatives

KYOWA HAKKO KOGYO KK4 citations62
US5256685AOct 26, 1993

Mitomycin derivatives

KYOWA HAKKO KOGYO KK3 citations62
US4820824AApr 11, 1989

Mitomaycin compounds

KYOWA HAKKO KOGYO KK2 citations62
US4393056AJul 12, 1983

Antibiotics tetronolide compounds and process for production thereof

KYOWA HAKKO KOGYO KK3 citations62
US5539112AJul 23, 1996

5-aminoflavone derivatives

KYOWA HAKKO KOGYO KK2 citations61
US4346075AAug 24, 1982

Antibiotic DC-11 and process for production thereof

KYOWA HAKKO KOGYO KK4 citations61
US5780677AJul 14, 1998

Process for producing glutamine derivative

KYOWA HAKKO KOGYO KK4 citations60
US5585488ADec 17, 1996

Process for producing indolocarbazole derivatives

KYOWA HAKKO KOGYO KK2 citations60
US4296040AOct 20, 1981

Antibiotic nanaomycin E and a process for producing the same

KYOWA HAKKO KOGYO KK1 citations60
US6197998B1Mar 6, 2001

Process for producing N-glycyltyrosine and its crystal structure

KYOWA HAKKO KOGYO KK5 citations59
US4264504AApr 28, 1981

Mitomycin derivatives

KYOWA HAKKO KOGYO KK5 citations56
US5218126AJun 8, 1993

Halogen substituted mitomycin derivatives

KYOWA HAKKO KOGYO KK0 citations52
US5180825AJan 19, 1993

Mitomycin derivatives

KYOWA HAKKO KOGYO KK1 citations52
US5021423AJun 4, 1991

Mitomycin derivatives and intermediates therefor

KYOWA HAKKO KOGYO KK0 citations52
US4853385AAug 1, 1989

7-N,8-N-Ethylenemitomycin 8-imines

KYOWA HAKKO KOGYO KK0 citations52
US4748251AMay 31, 1988

7-n-aminomethylenemitomycin derivative

KYOWA HAKKO KOGYO KK0 citations52
US4733000AMar 22, 1988

Optially active 1-amino-2-(4-hydroxyphenyl)ethylphosphonic acid and derivatives thereof

KYOWA HAKKO KOGYO KK0 citations52
US4683220AJul 28, 1987

Novel physiologically active substances K-26, a process for preparation thereof and a pharmaceutical composition containing the same

KYOWA HAKKO KOGYO KK0 citations52
US5220026AJun 15, 1993

Pyrazoloacridone derivatives

KYOWA HAKKO KOGYO KK1 citations51
US5344938ASep 6, 1994

Indole 3-carboxylic acid derivatives

KYOWA HAKKO KOGYO KK1 citations50
US4353986AOct 12, 1982

Process for producing antibiotic nanaomycin E

KYOWA HAKKO KOGYO KK0 citations50
US5756823AMay 26, 1998

Glutathione monoester sulfonate

KYOWA HAKKO KOGYO KK0 citations48

KASAI MASAJI

1 patent

DAINIPPON SUMITOMO PHARMA CO

1 patent