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For the Inventor, By the Inventor

Itami, Japan

Takuji Sonoda

USPTO Granted Patents = 16

Average Co-Inventor Count = 2.5

ph-index = 10

Forward Citations = 185(Granted Patents)


Location History:

  • Itami, JP (1990 - 1998)
  • Hyogo, JP (1998)

Company Filing History:

goldMedal16 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1990-1998

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16 patents (USPTO):Explore Patents
1. 5760457 - Bipolar transistor circuit element having base ballasting resistor (1998-06-02),
2. 5711813 - Epitaxial crystal growth apparatus (1998-01-27),
3. 5679603 - Method of making semiconductor device including high resistivity layer (1997-10-21),
4. 5428224 - Field effect transistor (1995-06-27),
5. 5365078 - Semiconductor device and method of making it (1994-11-15),
6. 5362677 - Method for producing a field effect transistor with a gate recess (1994-11-08),
7. 5288654 - Method of making a mushroom-shaped gate electrode of semiconductor device (1994-02-22),
8. 5285087 - Heterojunction field effect transistor (1994-02-08),
9. 5250822 - Field effect transistor (1993-10-05),
10. 5220186 - Semiconductor device with a mushroom-shaped gate electrode (1993-06-15),
11. 5185534 - Monolithic parallel connected transistor structure (1993-02-09),
12. 5139968 - Method of producing a t-shaped gate electrode (1992-08-18),
13. 5045497 - Method of making a schottky electrode (1991-09-03),
14. 5032541 - Method of producing a semiconductor device including a Schottky gate (1991-07-16),
15. 4984036 - Field effect transistor with multiple grooves (1991-01-08),

Title: Takuji Sonoda: Innovator in Semiconductor Technology

Introduction

Takuji Sonoda, an accomplished inventor hailing from Itami, Japan, holds an impressive portfolio of 16 patents. His work primarily focuses on advancements in semiconductor technology, significantly contributing to the efficiency and performance of electronic devices.

Latest Patents

Among Sonoda's latest innovations is a bipolar transistor circuit element that includes a semiconductor substrate with successively disposed layers - base, emitter, and collector. This invention features a base ballasting resistor that enhances the production quality and uniformity of the transistors. Additionally, his epitaxial crystal growth apparatus is designed to facilitate rapid transitions between varying degrees of vacuum, optimizing the growth conditions for different semiconductor applications.

Career Highlights

Sonoda has spent a significant portion of his career at Mitsubishi Denki Kabushiki Kaisha, a notable company in the electronics industry. His contributions have advanced the field of semiconductor technology, where his inventions are paving the way for more reliable and efficient devices.

Collaborations

Throughout his career, Sonoda has collaborated with esteemed colleagues, including Shinichi Sakamoto and Kazuo Hayashi. These partnerships have further enriched his innovative endeavors and advanced the projects they collectively pursued in semiconductor research and development.

Conclusion

Takuji Sonoda's contributions to the field of semiconductor technology through his numerous patents illustrate his impact as an inventor. His work continues to influence the electronics industry, making strides towards more advanced and efficient technologies.

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