Company Filing History:

11 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

patents

2 out of 15,844

Mitsubishi Electric Corporation

patents

Years Active: 1990-2017

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9716185 - Field effect transistor (2017-07-25),

2. 7457336 - Laser diode drive circuit (2008-11-25),

3. 7295072 - Amplifier circuit (2007-11-13),

4. 5859554 - Variable delay circuit (1999-01-12),

5. 5834960 - Semiconductor device (1998-11-10),

6. 5821793 - Variable delay circuit and a variable pulse width circuit (1998-10-13),

7. 5726990 - Multiplexer and demultiplexer (1998-03-10),

8. 5708381 - Variable delay circuit (1998-01-13),

9. 5668491 - Variable delay circuit (1997-09-16),

10. 5656956 - Logic gate circuit and digital integrated circuit (1997-08-12),

11. 5355027 - Shift register circuit with three-input nor gates in selector circuit (1994-10-11),

12. 5030852 - Quasicomplementary MESFET logic circuit with increased noise imunity (1991-07-09),

13. 4931669 - High speed logic circuit having output feedback (1990-06-05),

Title: Norio Higashisaka: Innovator in Semiconductor Technology

Introduction

Norio Higashisaka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 13 patents. His work has had a lasting impact on various electronic devices and systems.

Latest Patents

Higashisaka's latest patents include innovative designs for a field effect transistor and a laser diode drive circuit. The field effect transistor patent describes a semiconductor substrate with a main surface, featuring a plurality of source and drain electrodes that are alternately disposed and ohmic-connected. Additionally, it includes gate electrodes that are Schottky-connected to the main surface, enhancing the transistor's performance. The laser diode drive circuit patent outlines a configuration that includes two transistors connected to a laser diode, along with a constant current circuit and high-pass filters, ensuring efficient operation of the laser diode.

Career Highlights

Throughout his career, Norio Higashisaka has worked with notable companies such as Mitsubishi Denki and Mitsubishi Electric Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Higashisaka has collaborated with esteemed colleagues, including Akira Ohta and Tetsuya Heima. Their combined expertise has contributed to the advancement of technology in their respective fields.

Conclusion

Norio Higashisaka's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of electronic devices and systems.

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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.