Sentai writers by episodes: the Taketara/ Kobayashi era

Gekisou Sentai Carranger

Yoshio Urasawa (main writer) : 1-9, 12-13, 16-17, 20-22, 24, 27-32, 35-37, 46-48 (29 eps)
Hirohisa Soda : 10, 14, 18, 38-39, 44 (6 eps)
Naruhisa Arakawa : 11, 15, 19, 23, 25-26, 33-34, 40-43, 45 (13 eps)

Denji Sentai Megaranger

Junki Takegami (main writer) : 1-3, 5-6, 8-9, 12-14, 19-21, 27, 30, 38-39, 42-43, 46, 48, 50 (22 eps)
Naruhisa Arakawa : 4, 7, 10-11, 17-18, 22, 28, 33, 37, 51 (11 eps)
Shigeru Yanagawa : 15, 23, 29, 34, 45 (5 eps)
Yasuko Kobayashi: 16, 24-26, 31-32, 35-36, 40-41, 44, 47, 49 (13 eps)

Seijuu Sentai Gingaman

Yasuko Kobayashi (main writer) : 1-7, 10-13, 16-20, 22-26, 29-31, 33-38, 40-42, 44, 46 ( written with 村山桂 (sorry, I don't know how it's spelled) 48-50 (38 eps)
Junki Takegami : 8-9, 15, 28, 32 (5 eps)
Naruhisa Arakawa : 14, 21, 27, 45 (4 eps)
Tsuyoshi Kida : 39, 47 (2 eps)
沖田徹男 (sorry, dunno how it's spelled)  : 43 (1 ep)
村山桂 : 46 (written with Kobayashi)

Kyuukyuu Sentai GogoFive

Junki Takegami (main writer) : 1-3, 5, 7, 11-12, 18, 21-22, 25-26, 29-30, 33, 37-38, 42-43, 47-50 (23 eps)
Junichi Miyashita : 4, 9, 14, 17, 23, 31, 35, 40 (8 eps)
Yasuko Kobayashi: 6, 8, 13, 16, 19-20, 27, 32, 34, 41, 46 (11 eps)
Ryota Yamaguchi : 10, 15, 24, 28, 36, 39, 44-45 (8 eps)

Mirai Sentai Timeranger (I don't count the special super sentai retrospective ep)

Yasuko Kobayashi (main writer) : 1-7, 9-11, 13, 15, 18-21, 24-31, 33-34, 36-44, 46-50 (40 eps)
Ryota Yamaguchi : 8, 12, 16-17, 23, 32, 35, 45 (8 eps)
Toshiki Inoue : 14, 22 (2 eps)