Keizo Ohtani

Title: Keizo Ohtani: Innovator in Semiconductor Technology

Introduction

Keizo Ohtani is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on developing advanced pressure sensors that enhance the performance and reliability of various applications.

Latest Patents

One of Ohtani's latest patents is a semiconductor pressure sensor. This innovative sensor includes a semiconductor substrate, a pressure detection gage, and a temperature detection gage. The semiconductor substrate features a thin portion at its center and a thick portion around the outer edge. The pressure detection gage is located on one surface of the thin portion and functions as a piezoelectric resistive region. Additionally, the temperature detection gage is formed by connecting multiple pairs of orthogonal minute line segments in a zigzag configuration. These segments are strategically placed on the thick portion of the substrate to minimize piezoelectric resistance coefficients.

Another notable patent is a pressure detection gage specifically designed for semiconductor pressure sensors. This gage includes a gage portion, a pair of lead-out portions, and an isolation layer. The gage portion is situated on the upper surface of a semiconductor substrate of the first conductivity type and serves as a piezoelectric region with a predetermined sheet resistance. The lead-out portions are heavily doped semiconductor regions of the second conductivity type, providing electrical connections to the gage portion. The isolation layer surrounds the lead-out portions, ensuring optimal performance.

Career Highlights

Keizo Ohtani has built a successful career at Yamatake-Honeywell Co., Ltd., where he continues to innovate in the semiconductor field. His expertise and dedication have led to advancements that benefit various industries, particularly in sensor technology.

Collaborations

Ohtani has collaborated with notable colleagues, including Junji Kawachi and Shunichiro Awa. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Keizo Ohtani's contributions to semiconductor technology, particularly in pressure sensors, highlight his role as an influential inventor. His patents reflect a commitment to innovation and excellence in the field.