Location History:
- Gunma, JP (1987)
- Gunma-ken, JP (1996)
Company Filing History:
Years Active: 1987-1996
Title: Katsuhiro Ohkubo: Innovator in Air Conditioning and Inverter Technology
Introduction
Katsuhiro Ohkubo is a notable inventor based in Gunma-ken, Japan. He has made significant contributions to the fields of air conditioning and inverter technology. With a total of 2 patents, his innovations have enhanced the efficiency and comfort of climate control systems.
Latest Patents
One of Ohkubo's latest patents is an advanced air conditioner. This air conditioner features a mechanism for detecting the frequency needed to control an AC motor of a compressor. It also includes a system for determining whether the operating frequency converges within a predetermined range necessary to maintain the designated temperature. When the frequency decreases and converges to this range, the air conditioner's designated temperature is shifted by a predetermined amount. This ensures that even if a user's body temperature drops, such as during sleep, the air conditioner can maintain a comfortable environment.
Another significant patent is for an inverter apparatus. This apparatus consists of a bridge circuit made up of multiple switching transistors, which are controlled by a microprocessor. The microprocessor stores patterns of ON and OFF states based on pulse width modulation (PWM) theory. It manages the timing and output of these patterns to control the switching transistors effectively. This results in a continuous AC output from the bridge circuit, showcasing Ohkubo's innovative approach to inverter technology.
Career Highlights
Katsuhiro Ohkubo has had a distinguished career at Sanyo Electric Co., Ltd. His work has focused on developing technologies that improve energy efficiency and user comfort in air conditioning systems. His patents reflect a deep understanding of both electrical engineering and user needs.
Collaborations
Ohkubo has collaborated with notable colleagues, including Kiyoshi Itani and Hisashi Tokizaki. Their combined expertise has contributed to the successful development of innovative technologies in their field.
Conclusion
Katsuhiro Ohkubo's contributions to air conditioning and inverter technology have made a lasting impact on the industry. His innovative patents demonstrate a commitment to enhancing user comfort and energy efficiency. His work continues to influence advancements in climate control systems.