This inventor holds 2 USPTO granted patents. Top assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Churyo Engineering Kabushiki Kaishi. Active years: 1978-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Nagoya, JA (1978)
- Nishi Kasugai, JP (1989)
Company Filing History:

Years Active: 1978-1989
Title: Innovations of Hiroshi Machida
Introduction
Hiroshi Machida is a notable inventor based in Kasugai, Japan. He has made significant contributions to the field of rotary compressors, holding a total of 2 patents. His work focuses on enhancing the efficiency and noise reduction of compressor systems.
Latest Patents
One of Machida's latest patents is for a rotary compressor with clearance volumes to offset pulsations. This innovative design includes a top clearance volume formed between a cylinder chamber and at least one delivery valve. Another top clearance volume, which communicates with the cylinder chamber, produces a reverse flow of compressed fluid. This reverse flow generates pulsations that offset high-frequency components of pulsations generated in the cylinder chamber. As a result, the high-frequency component of pulsations is eliminated, leading to a low-noise rotary compressor.
Another significant patent by Machida is for a sealed type motor-compressor. This design features a structure where a refrigerant gas is directly led from an intake pipe to a cylinder. The sealed type motor-compressor is characterized by a connecting member that can slidably follow the relative movement of internal components within the sealed housing. This innovative approach enhances the functionality and reliability of the motor-compressor.
Career Highlights
Throughout his career, Hiroshi Machida has worked with prominent companies, including Mitsubishi Heavy Industries and Churyo Engineering Co., Ltd. His experience in these organizations has contributed to his expertise in compressor technology and innovation.
Collaborations
Machida has collaborated with notable colleagues such as Kazumitsu Nishioka and Makoto Fujitani. Their combined efforts have further advanced the development of innovative compressor technologies.
Conclusion
Hiroshi Machida's contributions to the field of rotary compressors demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of engineering principles and a dedication to improving compressor performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile