Location History:
- Fujiidera, JP (1980)
- Higashiosaka, JP (1992 - 1994)
Company Filing History:
Years Active: 1980-1994
Title: Innovations by Hiroshi Minakawa
Introduction
Hiroshi Minakawa is a notable inventor based in Higashiosaka, Japan. He has made significant contributions to the field of microwave technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of microwave ovens.
Latest Patents
One of Minakawa's latest patents is for a microwave oven that includes a function for matching impedance. This innovative design features a heating chamber, a turntable, a magnetron, and a waveguide that guides microwaves into the heating chamber. An electric field sensor is strategically placed at the inner wall of the waveguide or heating chamber. A rotatable metal reflector adjusts the impedance of the load in the heating chamber based on its rotation angle. The control circuit operates using two distinct programs to optimize the rotation angle for maximum efficiency.
Another significant patent is for a microwave oven with an inverter-controlled power source. This design utilizes a magnetron in conjunction with high-frequency power generated by the inverter. Heat-sensitive ferrite beads on the lead wire change the inductance of the wire, ensuring that the magnetron operates within an optimal range. This innovation extends the lifespan of the magnetron while preventing moding issues.
Career Highlights
Hiroshi Minakawa is associated with Sharp Kabushiki Kaisha Corporation, where he has contributed to various advancements in microwave technology. His work has been instrumental in improving the performance and reliability of microwave ovens.
Collaborations
Minakawa has collaborated with notable coworkers, including Masatugu Fukui and Masayuki Uno. Their combined expertise has led to significant innovations in the field.
Conclusion
Hiroshi Minakawa's contributions to microwave technology through his patents demonstrate his commitment to innovation and improvement in everyday appliances. His work continues to influence the industry and enhance user experiences with microwave ovens.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.