Toshikazu Hiasa

Title: Toshikazu Hiasa: Inventor in Two-Stroke Engine Technology

Introduction

Toshikazu Hiasa is an inventor associated with Saitama, Japan, and Honda Giken Kogyo Kabushiki Kaisha, commonly known as Honda. His recorded portfolio includes 3 patents, including inventions concerning exhaust control in two-stroke engines.

Latest Patents

Hiasa’s listed patents address mechanisms for controlling exhaust timing and managing heat around an engine’s exhaust passage.

“Exhaust Controller for Spark Ignition Type Two Stroke Internal” describes an exhaust control valve that adjusts exhaust timing while helping cool the exhaust passage. The design uses cooling-water passages in the lid member and cylinder block to cool different outer portions of the passage.

“Two-Cycle Engine” describes paired valves that move to partially close an exhaust port and vary its timing. A rack rod, shafts, and levers coordinate the valves’ movement, linking the motion of one shaft to the other.

Career Highlights

Hiasa’s listed inventions focus on practical engine engineering, particularly exhaust timing control and cooling. These designs illustrate mechanical approaches to coordinating valve movement and managing heat in two-stroke engines.

Collaborations

Hiasa is associated with Honda Giken Kogyo Kabushiki Kaisha. His listed coworkers include Ikuo Oike and Hiroyuki Uchida.

Conclusion

Toshikazu Hiasa’s patent record reflects contributions to two-stroke engine design, with particular attention to exhaust control, coordinated valve mechanisms, and cooling.