NEC

Background
NEC Corporation (日本電気株式会社, Nippon Denki Kabushiki-gaisha) is a Japanese information technology and electronics corporation, headquartered in Minato, Tokyo. Their products range from information technology and network solutions products, to various consumer electronics such as personal computers, televisions, mobile phones, office facilities and video game consoles (PC Engine/TurboGrafx-16 and PC-FX). Originally branded as Nippon Electric Company, Limited, they changed to the NEC name in 1983. The company has been the biggest PC vendor in Japan since the 1980s after the launch of the PC-8000 series in 1979 - later followed up by the PC-8800 series in 1981 and the PC-9800 next year, with the PC-9800 series being supported until 2003. Once Japan's major electronics company, NEC has largely withdrawn from manufacturing since the beginning of the 21st century.

Logo (1986-1993)
Logo: We see multiple blue rays move out into the center over a dark blue background. These form the "NEC" logo of the time, before a flash occurs at the center and changes the background to a brighter blue, with the NEC logo in white.

Variant: A few commercials from 1991-1993 had the logo fading in from black.

Technique: Cel animation.

Music/Sounds: A group of female singers singing "NEC!", followed by a synth bell. In later years, the bell note was altered.

Music/Sounds Variant: The ending music and the announcer saying the name for the variant.

Availability: Seen on NEC commercials from the time frame.

Logo (1993-1996)
Logo: Over a white background, the new, blue NEC logo warps in from the center of the screen.

Technique: Computer animation.

Music/Sounds: An ethereal synth note with a group of people saying "NEC".

Availability: Seen on NEC commercials from the time frame.

Logo (1996-1998)
Logo: Over a white background, the gray text マルチメディアのNEC, with a wavy line shape below at the left, rises up from the center of the screen.

Technique: Computer animation.

Music/Sounds: Same as before.

Availability: Seen on NEC commercials from the time frame.

Logo (1999-2002)
Logo: Over a white background, we see blue Japanese text zoom out near the top, with below it the black text "Invitation to the Internet" and the blue NEC logo fading in.

Technique: Computer animation.

Music/Sounds: A modulated synth note with a male voice saying "NEC".

Availability: Seen on NEC commercials from the time frame.