Mitsubishi Electric Corporation

Sega Corporation

Shuichi Kitamura

Hiroshi Uemura

Kenji Hatori

Tetsuo Motomiya

Tomonori Nebuya

Taro Nishiyama

An object is to provide a technique that enables suppression of oscillation of a gate signal waveform. A power semiconductor device includes a power semiconductor chip, a plurality of collector main terminals and a plurality of emitter main terminals electrically connected to the power semiconductor chip, and a signal line. The plurality of collector main terminals and the plurality of emitter main terminals have protrusion portions which protrude from a disposition surface of the power semiconductor chip, respectively, and the signal line surrounds, with respect to these protrusion portions, an entire circumference of all the protrusion portions and is spaced apart therefrom in plan view.

Power semiconductor device including a semiconductor switching element

To provide a game machine capable of recording a play score for a team constituted of self and partners in a portable recording medium separately for each team, and executing team-specific game processing by using recorded data regarding the team. Comprising a means for reading data from a first recording medium mounted on a mounting unit of the game machine by a first player, reading data from a second recording medium mounted by a second player, and determining them both to be a team when a recording medium-specific ID other than self's is recorded in at least one of the first and second recording media and the means for ascribing information about a competition score during a game progress or a competition result from cooperative competition of the team to the recording medium-specific ID of a cooperator, to record it in at least one recording medium of the first and second recording media as team score recording data of the team.

Game machine

Growing community of inventors

Tokyo, Japan

Shuichi Kitamura