Mitsuhiro Kawaguchi

Title: Mitsuhiro Kawaguchi: Projection and Lamp-Safety Innovations.

Introduction

Mitsuhiro Kawaguchi is an inventor based in Tokyo, Japan, with 5 patents. His patent work includes projection-display technology and safety features for discharge-lamp systems. He is associated with Mitsubishi Electric Corporation.

Latest Patents

One of Kawaguchi’s latest patents concerns a projection display apparatus that controls whether to cool a lamp before restarting it. The system uses a time-management section to adjust an output voltage according to the lamp’s cooling characteristics. If the voltage indicates that the lamp remains above a predetermined temperature, a fan cools it before restart. If the lamp is below that temperature, it can be turned on immediately without fan cooling.

Another patent describes a light-source device and projection display designed to contain fragments if a discharge lamp bursts while operating. During normal use, vent holes allow cooling air to flow between the device’s interior and exterior. If the lamp bursts, the resulting pressure wave moves a valve that closes a vent hole, helping contain fragments within the device.

Career Highlights

Kawaguchi’s listed inventions address practical challenges in projection systems, including lamp restart timing, cooling, and protection against lamp failure. These designs combine operating controls with mechanical safety measures.

Collaborations

Kawaguchi’s listed coworkers include Tatsuro Hirose and Motoo Takahashi. His work is associated with Mitsubishi Electric Corporation.

Conclusion

Mitsuhiro Kawaguchi’s patent portfolio reflects a focus on improving projection-display operation and safety through temperature-aware lamp control and burst-containment mechanisms.