Noriharu Kojima

Title: Noriharu Kojima: Innovator in Antenna Technology

Introduction

Noriharu Kojima is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of antenna technology, holding a total of 2 patents. His work focuses on enhancing radio communication systems through innovative antenna designs.

Latest Patents

Kojima's latest patents include an antenna device that features both a first and second antenna. This device is designed to correspond to multiple radio communication systems and frequency bands. It can simultaneously carry out reception and transmission for different radio communications systems while utilizing antenna diversity through a simple construction. The antenna device comprises a first antenna that matches with the first, second, and third frequency bands, and a second antenna that matches with the third frequency band. Additionally, it includes a diplexer and high-frequency switch circuits that facilitate the connection of transmitters and receivers based on the frequency band in use.

Another notable patent is for a radio communications apparatus that employs a phase comparator to compare the phase of the output signal from a quadrature modulator with a signal obtained from a frequency-converted output of a first voltage-controlled oscillator (VCO). This apparatus includes a phase-locked loop (PLL) modulator that filters components below a predetermined frequency and supplies the resulting signal to the frequency control terminal of the first VCO. The output signal from the first VCO is a modulated signal that conforms to a modulation system with a constant envelope waveform.

Career Highlights

Noriharu Kojima is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate in the field of antenna technology. His work has been instrumental in advancing the capabilities of radio communication systems.

Collaborations

Kojima has collaborated with notable coworkers, including Hideki Watanabe and Yasunobu Akaoka. Their combined expertise has contributed to the development of cutting-edge technologies in their field.

Conclusion

Noriharu Kojima's contributions to antenna technology and radio communications have established him as a key figure in the industry. His innovative patents reflect his commitment to enhancing communication systems, making significant strides in the field.