
Writer
Birthday: (63) 1962-02-01
Birthplace: Atami, Shizuoka Prefecture, JapanAlso known as: Kei'ichi Hasegawa, 長谷川 圭一,

Kamen Rider Go...
10
Story

Kamen Rider Go...
10
Writer

Super Sentai S...
10
Writer

Kamen Rider Go...
10
Series Composi...

Kamen Rider Dr...
9.5
Writer

Ultraman Dyna
8.9
Writer

Ultraman Cosmos
8.9
Writer

Ultraman Nexus
8.8
Series Composi...

Ultraman Nexus
8.8
Writer

Ultraman Gaia
8.7
Writer

Cackling Kitar...
8.6
Writer

Kamen Rider Dr...
8.5
Writer

Graveyard Kita...
8.5
Script

Ultraman Mebius
8.467
Writer

Kamen Rider Dr...
8.2
Writer

Ultraman Ginga
8.167
Writer

Ultraman Ginga
8.167
Creator

Gridman Univer...
8
Screenplay

Kamen Rider Go...
8
Writer

Kamen Rider Go...
8
Writer

Abyssalis Reve...
8
Writer

Astro Boy
7.8
Writer

Ultraman Mebiu...
7.731
Writer

Rage of Bahamut
7.681
Series Composi...

Rage of Bahamut
7.681
Writer

Superior Ultra...
7.588
Writer

Godzilla, Moth...
7.468
Screenplay

SSSS.DYNAZENON
7.409
Writer

SSSS.DYNAZENON
7.409
Series Composi...

Kamen Rider Dr...
7.2
Writer

SSSS.GRIDMAN
7.199
Writer

SSSS.GRIDMAN
7.199
Series Composi...

Ultraman Tiga ...
7.1
Writer

Ultraman Saga
7.1
Writer

ウルトラマンダイナ SPEC...
7
Writer

Kamen Rider Gh...
7
Writer

Ultraman Cosmo...
7
Writer

The Big O
6.914
Writer

Phoenix
6.7
Writer

Kamen Rider W ...
6.6
Writer

Ultraman Tiga:...
6.6
Screenplay

Ultraman Cosmo...
6.5
Screenplay

Ultraman: The ...
6.4
Writer

Ultraman Tiga ...
6.4
Screenplay

Kamen Rider
6.378
Writer

Kamen Rider
6.378
Series Composi...

Ultraman Cosmo...
6.1
Screenplay

009-1: The End...
5.841
Writer

Cutie Honey: T...
5.2
Writer

SSSS.DYNAZENON...
4.955
Screenplay

Dream Hazard
4
Director of Ph...

SSSS.GRIDMAN G...
3.071
Writer

My future of b...
0
Writer

Takamine - The...
0
Writer

Kamen Rider Fo...
0
Writer

ネット版 仮面ライダーフォー...
0
Writer