Location History:
- Kokubunji, JA (1976)
- Kokubunji, JP (1980 - 1982)
- Yamanashi, JP (1989 - 1990)
- Isehara, JP (1992)
- Gunma-ken, JP (1997)
- Koufu, JP (1993 - 1998)
- Iwanuma, JP (2002 - 2003)
- Kobe-city, Hyogo-prefecture JP (2004)
- Fuchu, JP (2008)
- Takasaki, JP (1983 - 2012)
Company Filing History:
19 out of 42,485 
15 out of 3,781 
8 out of 2,861 
Years Active: 1976-2012
Title: Innovator Spotlight: Kazuo Watanabe – A Pioneer in Mobile Communication Technologies
Introduction: Kazuo Watanabe, hailing from Takasaki, Japan, is a prominent figure in the realm of mobile communications. With a remarkable portfolio of 49 patents, Watanabe has contributed significantly to advancements in communication technology. His inventions are characterized by their innovative use of integration techniques that enhance the efficiency and performance of mobile devices.
Latest Patents: Among Watanabe's notable inventions is a mobile communication apparatus that features a transceiver designed for larger scale integration. This transceiver employs direct conversion reception, a method aimed at reducing the number of filters required in the system. His design notably minimizes the number of Voltage-Controlled Oscillators (VCOs) by utilizing dividers to supply both the receiver and transmitter with locally oscillated signals operating at an RF band. The dividers are configured so that those with a fixed division ratio generate signals for the receiver, while a switchable division ratio divider is tasked with producing the transmitter's locally oscillated signal. Furthermore, Watanabe's apparatus integrates a variable gain amplifier for the baseband signal, equipped with a DC offset voltage detector and a canceling circuit to support high-speed data communications. This innovation allows for the rapid cancellation of DC offsets without the interference of filters within the feedback loop, significantly enhancing data transmission quality.
Career Highlights: Watanabe's impressive career includes significant stints at leading technology companies such as Hitachi, Ltd. and Renesas Technology Corporation. His expertise and innovative spirit have driven advancements that are now foundational to modern mobile communications.
Collaborations: Throughout his illustrious career, Watanabe has collaborated with fellow innovators, including Taizo Yamawaki and Satoshi Tanaka. These partnerships have fostered a creative environment conducive to groundbreaking developments in the technology sector.
Conclusion: Kazuo Watanabe stands out as a visionary inventor whose contributions to mobile communication technology continue to influence the industry. With a strong foundation of patents and collaborative projects, he exemplifies the spirit of innovation that drives technological progress forward. Watanabe's work not only showcases his ingenuity but also serves as a testament to the impact of dedicated inventors in shaping the future of communication technologies.
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.