Shinagawa is one of the 23 wards of central Tokyo. Historically, parts of this ward were known as Shimazuyama. Many feudal lords (daimyo) maintained estates in this area during the Tokugawa Shogunate. More recently, this area is the birthplace and home of Sony.
JR Shingawa Station is on the JR Yamanote, Keihin-Tohoku, and Tokaido lines. Shinkansen service to Shinagawa also started in late 2003.
The Shinagawa area is also served by the Mita and Asakusa subway lines.
The Keikyu Railway offers quick and cheap service from Shinagawa to Haneda Airport for domestic flights.
The central immigration office for the Tokyo area is now in Shinagawa. Exit JR Shinagawa Station on the Konan side and follow the signs to the bus station serving Immigration.
Shinagawa Prince Executive Tower offers chain restaurants, souvenir shopping, limousine bus service to Narita, an IMAX theater, and a movie multiplex.
Directly across the street from JR Shinagawa Station you will find Enoteca on the second level of Shinagwa Wing. Shop for imported wines, or sample glasses in their small cafe.
With the new Shinkansen service to Shinagawa, the area hotels have become much more convenient (and crowded). Shinagawa Prince, Takanawa Prince, and others are all clustered on the west side of the station. The Tokyu Inn a few minutes south of the station is a bit cheaper. Also, try JR Gotanda Station in Shinagawa ward for cheaper business hotels or capsules.