Location History:
- Itami City, JP (1989)
- Itami, JP (1989 - 1994)
- Kikuchi, JP (1994)
- Hyogo-ken, JP (1996)
- Hyogo, JP (1992 - 2001)
- Tokyo, JP (2005)
Company Filing History:
14 out of 21,351 
1 out of 1,571 
Years Active: 1989-2005
Title: **Kiyoaki Tsumura: A Pioneer in Semiconductor Innovations**
Introduction
Kiyoaki Tsumura is a notable inventor hailing from Itami, Japan, with an impressive portfolio of 14 patents to his name. His contributions to the field of semiconductor technology and optical devices mark him as a significant figure in modern innovation.
Latest Patents
Among Tsumura’s latest patents is the **Semiconductor Laser Device** and the **Optical Pickup Apparatus Using the Device**. This inventive design features a semiconductor laser element encased within a protective wall on a metal frame. The unique arrangement allows for the circumferential portions at the outer periphery of the frame to rotate the optical axis of light emitted from the semiconductor laser element. This innovation is crucial for enhancing the performance of optical pickup devices. Another notable recent invention is the **Method and Apparatus for Melting a Bump by Induction Heating**. This method revolutionizes the traditional bump melting process by eliminating several steps, including flux application and cleaning, using electromagnetic induction in a low oxygen environment to achieve efficient heating.
Career Highlights
Throughout his career, Kiyoaki Tsumura has made significant strides in the technological landscape, working with prominent companies such as Mitsubishi Electric Corporation and Mitsumi Electric Company Ltd. His experiences in these esteemed organizations have contributed substantially to his expertise and innovative capacity in the semiconductor field.
Collaborations
Tsumura has collaborated with several noted professionals, including Hitoshi Fujimoto and Shigeru Harada. These collaborations have fostered a creative environment that has led to fruitful innovations and advancements in their respective fields.
Conclusion
Kiyoaki Tsumura stands out as a prominent inventor in the realm of semiconductor technology, with his patents reflecting a commitment to innovation and improvement. His work continues to influence the industry and inspire future inventions, ensuring his legacy in the world of technology remains impactful.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.