This inventor holds 3 USPTO granted patents. Top assignees: Yamatake-Honeywell Co., Ltd., Yokowo Co., Ltd., Yokowo Mfg. Co., Ltd.. Active years: 1990-1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 117 
2 out of 214 
1 out of 4 Years Active: 1990-1993
Title: Ko Ishikawa: Innovator in Communication Technology
Introduction
Ko Ishikawa is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of communication technology, holding a total of 3 patents. His innovative work focuses on enhancing signal communication and microwave technology.
Latest Patents
One of Ishikawa's latest patents is a baseband signal communication apparatus. This apparatus includes a transmission unit and a reception unit. The transmission unit superposes a subcarrier on one value of a baseband signal consisting of binary values. It modulates a carrier with the baseband signal on which the subcarrier is superposed and transmits the baseband signal as a transmission signal wave. The reception unit demodulates the baseband signal having the subcarrier superposed thereon by using a demodulator upon reception of the transmission signal wave. It extracts the subcarrier from the demodulated signal by using a bandpass filter and demodulates the baseband signal by causing a detector to detect an envelope of the subcarrier.
Another significant patent is the microwave responder. This device resonates or does not resonate with a microwave transmitted from a radio transmitter and radiates the resonated microwave as a response signal wave. Two microstrip lines are linearly arranged to be separated from each other at a predetermined interval. A diode, which is switched between ON and OFF states in response to the response signal, is interposed between two end portions of the microstrip lines separated by the predetermined interval. The distance between the distal ends of the two linearly arranged microstrip lines, which includes an impedance defined by the ON or OFF state of the diode, is determined to be 1/2 a wavelength of the microwave.
Career Highlights
Throughout his career, Ko Ishikawa has worked with prominent companies such as Yamatake-Honeywell Co., Ltd. and Yokowo Co., Ltd. His experience in these organizations has contributed to his expertise in communication technologies.
Collaborations
Ishikawa has collaborated with notable individuals in his field, including Yoshikazu Kawashima and Shinichi Haruyama. These collaborations have further enriched his work and innovations.
Conclusion
Ko Ishikawa is a distinguished inventor whose contributions to communication technology have made a significant impact. His patents reflect his innovative spirit and dedication to advancing
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile