This inventor holds 62 USPTO granted patents and 1 published patent application and 20 EPO patents, primarily in Thermal Flow Measurement (CPC class 7320). Top assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd., Hitachi Automotive Engineering Co., Ltd.. Active years: 1989-2014.
Inventors with similar research interests:
Location History:
- Katsuta, JP (1989 - 1996)
- Miyagi, JP (2004)
- Ibaraki, JP (2005 - 2008)
- Hitachinaka, JP (1998 - 2014)
Company Filing History:
50 out of 42,719 
34 out of 248 
4 out of 152 Years Active: 1989-2014
Areas of Expertise:
Title: Innovations of Izumi Watanabe in Thermal Flow Sensors
Introduction: Izumi Watanabe, based in Hitachinaka, Japan, is a prolific inventor with an impressive portfolio of 62 patents. His work primarily focuses on thermal type flow sensors, which play a crucial role in measuring fluid flow rates through heat resistive elements. Watanabe's innovations exemplify advancements in sensor technology, showcasing his deep understanding of thermal dynamics and electrical engineering.
Latest Patents: Watanabe's latest patents include a thermal type flow sensor that utilizes a bridge circuit and an adjustment circuit for enhanced accuracy. This innovative sensor measures fluid flow by leveraging heat resistive elements that vary in temperature. The design includes multiple heat resistive elements for flow measurement and a driver circuit that controls the current to these elements. This configuration allows the driver circuit to sense resistance changes in the lower-temperature heat resistive element and adjust the current applied accordingly, thus improving measurement precision.
Career Highlights: Throughout his career, Izumi Watanabe has contributed significantly to the field of engineering while working for esteemed companies such as Hitachi, Ltd. and Hitachi Car Engineering Co., Ltd. His role in these organizations has enabled him to push the boundaries of technology and innovate in sensor systems, particularly for industrial applications.
Collaborations: Watanabe has collaborated with notable colleagues, including Keiichi Nakada and Masamichi Yamada. Their combined expertise has undoubtedly fueled many successful projects, furthering advancements in thermal sensing technologies and enhancing the accuracy of flow measurement systems.
Conclusion: Izumi Watanabe's contributions to the development of thermal type flow sensors are remarkable and reflect a commitment to innovation and excellence in engineering. With 62 patents to his name, his work continues to influence the industry, paving the way for future advancements in fluid measurement technologies.