is a collective pen name

Pen name

A pen name, nom de plume, or literary double, is a pseudonym adopted by an author. A pen name may be used to make the author's name more distinctive, to disguise his or her gender, to distance an author from some or all of his or her works, to protect the author from retribution for his or her...

 used by Toei Company

Toei Company

is a Japanese film, television production, and distribution corporation. Based in Tokyo, Toei owns and operates thirty-four movie theaters across Japan, a modest vertically-integrated studio system by the standards of the 1930s United States; operates studios at Tokyo and Kyoto; and is a...

 television producers when contributing to their various anime

Anime

is the Japanese abbreviated pronunciation of "animation". The definition sometimes changes depending on the context. In English-speaking countries, the term most commonly refers to Japanese animated cartoons....

 and tokusatsu

Tokusatsu

is a Japanese term that applies to any live-action film or television drama that usually features superheroes and makes considerable use of special effects ....

 series, whereas Izumi Todo

Izumi Todo

Izumi Todo , who is credited with creating series like Ojamajo Doremi and Futari wa Pretty Cure, is a collective pseudonym for the staff at Toei Animation...

 is solely Toei Animation

Toei Animation

Toei Animation Co., Ltd. is a Japanese animation studio owned by Toei Co., Ltd. The studio was founded in 1948 as Japan Animated Films . In 1956, Toei purchased the studio and it was reincorporated under its current name...

. The use of the pen name began with The Kagestar

The Kagestar

is a 1976-77 Toei live action tokusatsu television series in which young shadow puppeteer turned salaryman Kageoh Sugata gained, thanks to an electric shock received while rescuing his wealthy boss's daughter from kidnappers, the ability to merge with his shadow and transform into Kagestar .An...

and has been used throughout the Super Sentai

Super Sentai

The is the name given to the long-running Japanese superhero team genre of shows produced by Toei Co., Ltd., Toei Agency and Bandai, and aired by TV Asahi...

 (in the adapted Power Rangers

Power Rangers

Power Rangers is a long-running American entertainment and merchandising franchise built around a live action children's television series featuring teams of costumed heroes...

 series, the credits list Saburo Hatte) and Metal Hero Series as well as for Spider-Man

Spider-Man (tokusatsu)

is a Japanese live-action television series produced by Toei Company, loosely based on Marvel's Spider-Man character. The series lasted 41 episodes, which aired on the Wednesday 19:30 JST time slot of Tokyo Channel 12 from May 17, 1978, to March 14, 1979. A theatrical episode was also shown in the...

, Choukou Senshi Changéríon

Choukou Senshi Changéríon

is a Tokusatsu series created by Toei Company. The series aired from April 3, 1996 to December 25, 1996. It was originally planned to run for a full 52 episodes before being cut down to 39 due to low ratings...

, Chōdenji Robo Combattler V, Tōshō Daimos, Daltanius

Daltanius

was an anime series that aired from 1979 to 1980. There were 47 episodes. There are a lot of alternate spellings for the name, which includes "Dartanius", "D'Artagnas", "Daltanias" and "Dartanias". But the correct spelling should be "Daltanious" which was commonly used on the Japanese merchandise...

, Beast King GoLion, and Kikou Kantai Dairugger XV

Kikou Kantai Dairugger XV

was an anime series aired in Japan from 1982 to 1983. It is also referred to as "Dairugger 15", "Dairugger XV", "Armored Armada Dairugger XV", "Armored Squadron Dairugger XV", or "Machine Platoon Dairugger"....

. The name is also used as a contributor to the soundtracks for the series.