This inventor holds 8 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 7 EPO patents. Top assignees: Nippon Telegraph and Telephone Corporation, Ntt Electronics Corporation, Other. Active years: 2004-2024.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (2004)
- Yamato, JP (2008)
- Yokosuka, JP (2012)
- Atsugi, JP (2013 - 2014)
- Musashino, JP (2024)
Company Filing History:
7 out of 5,300 
1 out of 164 
1 out of 834,513 Years Active: 2004-2024
Title: Yasuaki Hashizume: Innovator in Optical Modulation Technology
Introduction
Yasuaki Hashizume is a prominent inventor based in Atsugi, Japan. He has made significant contributions to the field of optical modulation technology, holding a total of eight patents. His work focuses on advancing semiconductor devices that enhance communication technologies.
Latest Patents
Among his latest patents are the Semiconductor Mach-Zehnder Optical Modulator and the IQ Optical Modulator. The Semiconductor Mach-Zehnder Optical Modulator features input-side lead-out lines, phase modulation electrode lines, and electrodes that apply modulation signals to waveguides. This innovative design includes a conductive layer between a substrate and the waveguides, along with multiple wiring layers that facilitate efficient signal transmission. The IQ Optical Modulator incorporates a nest-type MZ optical waveguide with distinct optical modulation regions for I and Q channels. This design optimizes the arrangement of input and output optical waveguides, enhancing the overall performance of the modulator.
Career Highlights
Yasuaki Hashizume has worked with notable organizations, including Nippon Telegraph and Telephone Corporation. His experience in these companies has allowed him to refine his expertise in optical technologies and contribute to groundbreaking innovations.
Collaborations
Throughout his career, Hashizume has collaborated with esteemed colleagues such as Yasuyuki Inoue and Yoshihiro Ogiso. These partnerships have fostered a creative environment that has led to the development of advanced optical modulation solutions.
Conclusion
Yasuaki Hashizume's contributions to optical modulation technology have significantly impacted the field. His innovative patents and collaborations highlight his dedication to advancing communication technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile