This inventor holds 4 USPTO granted patents. Top assignee: Kaisei Engineer Co., Ltd.. Active years: 1995-2010.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (1995 - 1997)
- Setagaya, JP (2010)
Company Filing History:
Years Active: 1995-2010
Title: Hiroaki Kohama: Innovator in Electromagnetic Inspection Technologies
Introduction
Hiroaki Kohama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electromagnetic inspection technologies. With a total of 4 patents to his name, Kohama's work focuses on enhancing the accuracy and sensitivity of inspection devices.
Latest Patents
Kohama's latest patents include an electromagnetic induction type inspection device and method. This innovative device allows for the inspection of any object, regardless of material, with high accuracy and sensitivity. By placing the inspection object in a magnetic field generated by an alternating current applied to an exciting coil, changes in voltage level and phase of electromotive force induced by a detection coil unit can be detected. The discrimination of the inspection object is based on a DC voltage value compared to a standard specimen and a phase differential voltage value related to the phase difference between the voltage signal from the induction coil and the exciting current.
Another notable patent is the electromagnetic-induction type inspection device employing two induction coils. This device inspects a test specimen by placing it in electromagnetic fields produced by exciting coils. It detects induction currents from induction coils set in these fields and analyzes a composite signal composed of the amplitude and phase components contained in a differential current. The resulting composite signal is displayed as a waveform, allowing for the identification of deformed portions that represent internal defects or other abnormalities in the specimen.
Career Highlights
Kohama is currently associated with Kaisei Engineer Co., Ltd., where he continues to develop innovative inspection technologies. His work has significantly advanced the field, providing solutions that enhance the reliability of inspections across various materials.
Collaborations
Kohama has collaborated with notable colleagues, including Kazuhiko Yasohama and Makio Iwamoto. Their combined expertise has contributed to the successful development of advanced inspection technologies.
Conclusion
Hiroaki Kohama's contributions to electromagnetic inspection technologies have established him as a key figure in the field. His innovative patents reflect a commitment to improving inspection accuracy and sensitivity, making significant strides in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile