Mitsubishi Denki Kabushiki Kaisha

Other

Shojiro Nakahara

Toshio Takei

Sho Ito

Kumio Kasahara

Tomoyuki Nakaguchi

Kouichi Tanaka

Koji Akiyama

Tsutomu Hashimoto

Kenji Tatsumi

A data distribution method and apparatus have a satellite communication line (,) for transmitting data to a receiver and a ground line (,) for transmitting a data distribution request and a transmission confirmation pattern to a transmitter, a transmission confirmation designation device (,) in the transmitter for designating the transmission confirmation pattern, and a transmission confirmation processing device (,) for performing the transmission confirmation process according to a transmission confirmation method indicated by the transmitter.

Data distribution method and data distribution apparatus

A batting practice trainer includes a laser oscillator placed in a sensor unit configured to resemble a home plate. Three beams are emitted from the sensor unit in a predetermined pattern, so that the height, speed, and angle of elevation of a swinging bat may be calculated from the passage of the bat across the beams. This is accomplished without interferring with the batters' swing or substantially modifying the bat.

Baseball bat swing measuring device

The height and inclination of a batter's swing plane are measured by a batting practice device shaped like a home plate and including a laser source and photosensors for detecting laser light reflected by the bat when swung over the plate.

Swing measuring device

Growing community of inventors

Kanagawa, Japan

Shojiro Nakahara