Location History:
- New Haven, CT (US) (2003)
- Hamden, CT (US) (1978 - 2007)
- Hamdin, CT (US) (2008)
Company Filing History:
5 out of 8,686 
3 out of 1,327 
1 out of 8 
Years Active: 1978-2008
Title: Innovations of Richard Kounai Chang
Introduction
Richard Kounai Chang is a notable inventor based in Hamden, Connecticut, with a remarkable portfolio of 11 patents. His work primarily focuses on methods and systems for sorting particles, particularly in gaseous streams. His innovative approaches have significant implications for various industries, including environmental monitoring and air quality control.
Latest Patents
One of Chang's latest patents is a method and system for sorting particles sampled from air. This invention includes a particle scanner that measures characteristics of particles in a gaseous stream. The system also features a sorter that is in pneumatic communication with the scanner and a controller that classifies the particles based on their measured characteristics. The controller can signal an electrically controlled valve to alter the trajectory of classified particles, enhancing the sorting process.
Another significant patent involves systems and methods for sorting aerosols. This aerosol deflection system includes a concentration zone that expels an air stream through detection zones. The system activates the deflection zone when a suspect aerosol of a pre-selected size is detected, directing a pressure pulse to deflect the aerosol from the air stream based on its light-induced fluorescence signature.
Career Highlights
Throughout his career, Richard Kounai Chang has contributed to various organizations, including the U.S. Government as represented by the Secretary of the Army and Yale University. His work in these institutions has allowed him to develop and refine his innovative technologies, making a significant impact in his field.
Collaborations
Chang has collaborated with notable individuals such as Steven Clyde Hill and Ronald Gene Pinnick. These partnerships have likely enriched his research and development efforts, fostering a collaborative environment for innovation.
Conclusion
Richard Kounai Chang's contributions to the field of particle sorting and aerosol management demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in air quality and particle analysis. Chang's work continues to influence advancements in environmental technology and air quality monitoring.