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Title: The Innovative Mind of Nobuaki Iguchi: Breakthroughs in Optical Measurement Technologies
Introduction: Nobuaki Iguchi, an accomplished inventor located in Kawasaki, Japan, has made significant contributions to the field of optical measurement technology. With two patents to his name, Iguchi's innovative work focuses on accurately measuring the shapes and profiles of wafers, which are crucial in various industrial applications, particularly in semiconductor manufacturing.
Latest Patents: Nobuaki Iguchi's latest patents include:
1. **Optical Instrument for Measuring Shape of Wafer**: This invention features a pair of optical profile measuring systems strategically positioned to face both surfaces of a wafer that is vertically supported at its edge. A thickness gauge with one or more sensors is placed between the optical systems to measure thickness at various points on the wafer. The system comprises a light emitter that discharges a measuring light beam, a collimator lens to create a collimated beam, an optical flat to transmit the light beam, a light detector to receive reflected beams, and a computer that processes interference fringes between the wafer surface and the referential plane. The calculated profiles from both surfaces enable the determination of the real shape of the wafer, incorporating thickness values gathered by the thickness gauge.
2. **Optical Apparatus for Measuring Profiles of a Wafer**: This patent also includes a pair of optical profile measuring systems facing both sides of the wafer. Each system is equipped similarly with a light emitter, collimator lens, optical flat, and light detector. It enhances measuring precision by utilizing light interference fringes to assess the profiles of the main and back surfaces of the wafer, as well as its thickness variations.
Career Highlights: Over the years, Nobuaki Iguchi has worked with notable companies, including the Super Silicon Crystal Research Institute Corporation and Kuroda Precision Industries Ltd. His experience within these organizations has contributed significantly to his expertise and invention capabilities in optical technologies.
Collaborations: Throughout his career, Iguchi has had the opportunity to work alongside fellow innovator Kohzo Abe. Their collaborative efforts have supported advancements in optical measurement methods, driving innovation in their field.
Conclusion: Nobuaki Iguchi stands out as a remarkable inventor whose contributions to optical measurement technologies have paved new pathways for precision in various industries. His patents reflect a deep understanding of both theory and practical application, showcasing his ability to push the boundaries of innovation in Japan and beyond.