This inventor holds 34 USPTO granted patents and 1 published patent application, primarily in Optical Pattern Recognition. Top assignees: Seiko Instruments Inc, Sumitomo Cement Co., Ltd., Sumitomo Osaka Cement Co., Ltd.. Active years: 1992-2003.
Location History:
- Tokyo, JP (1992 - 2001)
- Chiba, JP (1996 - 2003)
Company Filing History:
34 out of 2,903 
2 out of 35 
1 out of 482 Years Active: 1992-2003
Areas of Expertise:
Title: The Innovative Contributions of Tadao Iwaki
Introduction
Tadao Iwaki, an esteemed inventor hailing from Chiba, Japan, has made significant strides in the field of engineering, particularly in the development of advanced motor technologies. With an impressive portfolio of 34 patents, he has demonstrated a commitment to innovation that has influenced various industries.
Latest Patents
Among Iwaki's most notable inventions is the liquid dynamic pressure bearing and spindle motor, which plays a crucial role in hard-disk driving units and scanner motors. This innovative design features bearing portions located at opposite ends of a rotor shaft, maintained by a lubrication oil gap with a capillary oil sealing portion to prevent evaporation and leakage. Additionally, the intricate journal bearings formed at the rotor shaft’s central axis inhibit precession, ensuring the stability of the spindle motor under external vibrations. Furthermore, he designed a motor featuring an armature and a permanent magnet with skewed magnetic poles, which enhances the interaction and efficiency between these components, ultimately leading to improved motor performance.
Career Highlights
Iwaki has built a remarkable career in various prominent organizations, most notably at Seiko Instruments Inc. and Sumitomo Cement Co., Ltd. His work with these companies allowed him to refine his engineering skills and develop groundbreaking technologies that have since garnered patents.
Collaborations
Throughout his career, Tadao Iwaki has collaborated with talented individuals such as Yasuyuki Mitsuoka and Naoki Kawawada. These partnerships have undoubtedly contributed to the advancement of his projects and innovations, reflecting a strong collaborative spirit in the field of engineering.
Conclusion
In summary, Tadao Iwaki's contributions to the field of engineering, particularly through his 34 patents, showcase his dedication to technological advancement. His latest innovations in liquid dynamic pressure bearings and motor technology not only illustrate his inventive capabilities but also highlight the importance of collaboration in achieving remarkable results within the industry.