Iwao Ida

Title: Iwao Ida: Innovator in Magnetic Discs and Silicon Crystal Manufacturing

Introduction

Iwao Ida is a notable inventor based in Tokyo, Japan. He has made significant contributions to the fields of magnetic disc technology and silicon crystal manufacturing. With a total of 3 patents to his name, his work has had a lasting impact on these industries.

Latest Patents

One of Iwao Ida's latest patents involves the development of titanium discs useful for magnetic discs. The objective of this invention is to provide titanium discs that can be used as high-density read-while-write magnetic discs. These titanium discs are designed with specific structures, including a mean height of the peaks from the center line, R.sub.a, ranging from 0.0002 μm to 0.0060 μm, and surface pits measuring 25 μm or less in diameter or 5 μm or less in depth. Additionally, these discs are coated with a non-magnetic plated layer, with a thickness between 0.09 μm and 5 μm, ensuring optimal performance.

Another significant patent by Ida is an apparatus for manufacturing silicon single crystals. This apparatus, based on the CZ method, features a partition member that divides a quartz crucible into a single crystal growing section and a material melting section. It includes at least one small hole for the passage of molten silicon and a heat-keeping cover made from a metal sheet selected from tantalum, molybdenum, or tungsten. This innovative design minimizes oxidation-induced stacking fault (OSF) density, enhancing the quality of the silicon single crystals produced.

Career Highlights

Throughout his career, Iwao Ida has worked with prominent companies such as NKK Corporation and Fuji Electric Co., Ltd. His experience in these organizations has contributed to his expertise in the field of technology and innovation.

Collaborations

Iwao Ida has collaborated with notable individuals in his field, including Masanori Ohmura and Hiroyoshi Suenaga. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

Iwao Ida is a distinguished inventor whose contributions to magnetic disc technology and silicon crystal manufacturing have made a significant impact. His innovative patents and collaborations reflect his dedication to advancing technology in these fields.