Location History:
- Tokyo, JA (1976)
- Toyko, JA (1976)
- Tokyo, JP (1978 - 1993)
Company Filing History:
4 out of 42,485 
2 out of 4 
1 out of 1,641 Years Active: 1976-1993
Title: Hiroyuki Iyama: Innovator in Antenna and Lighting Technology
Introduction
Hiroyuki Iyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of antenna technology and lighting devices. With a total of 7 patents to his name, Iyama's work reflects a commitment to innovation and practical applications in technology.
Latest Patents
One of Iyama's latest patents is the "Stripline Patch Antenna with Slot Plate." This invention features a stripline patch antenna designed to achieve higher antenna gain while minimizing loss due to feed lines. The antenna comprises at least one radiating element for transmitting and receiving radio waves, a feed line for signal transmission, a dielectric substrate for support, a grounding conductor beneath the substrate, and a slot plate above it with multiple slots. This design allows for the arrangement of multiple antenna units in an array, enhancing performance.
Another notable patent is the "Discharge Lamp Lighting Device." This device includes a series closed-loop circuit with an AC power supply, a ballast with inductance, and a discharge lamp. A parallel switch circuit operates to reignite the lamp every half cycle of the voltage, allowing for efficient lighting of discharge lamps with voltages close to the source voltage.
Career Highlights
Hiroyuki Iyama has worked with esteemed companies such as Hitachi, Ltd. and Hitachi Lighting, Ltd. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Iyama has collaborated with notable colleagues, including Mitsuo Akatsuka and Teruichi Tomura. Their joint efforts have likely fostered advancements in their respective fields.
Conclusion
Hiroyuki Iyama's contributions to antenna and lighting technology demonstrate his innovative spirit and dedication to enhancing technological applications. His patents reflect a blend of creativity and practicality, making him a significant figure in the world of inventions.
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.