Manabu Ishihara

Manabu Ishihara is a notable inventor based in Isesaki, Japan. He has made significant contributions to the field of air conditioning technology, holding a total of 5 patents. His work focuses on improving the efficiency and functionality of air conditioning systems.

Latest Patents

One of Ishihara's latest patents is a controller for air conditioners. This innovative apparatus includes an inverter circuit that outputs a pseudo-sine wave from a switching signal, which is derived from the comparison between a modulated wave and a carrier wave. The refrigeration cycle device features a compressor that is driven by the pseudo-sine wave, allowing the modulated wave to be adjusted according to the load of the air conditioner. Additionally, the controller incorporates a correction device that adjusts the amplitude of the modulated wave based on the rated voltage of the power source. This design helps to prevent the shutdown of the compressor during voltage variations, enhancing the reliability of air conditioning systems.

Career Highlights

Ishihara is currently employed at Sanyo Electric Co., Ltd., where he continues to develop innovative solutions in air conditioning technology. His expertise and dedication to his work have made him a valuable asset to the company.

Collaborations

Throughout his career, Ishihara has collaborated with talented individuals such as Tsugio Nakae and Tomonori Isobe. These collaborations have contributed to the advancement of technology in their field.

Conclusion

Manabu Ishihara's contributions to air conditioning technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the efficiency and reliability of air conditioning systems, showcasing the importance of innovation in this industry.