Toyokatsu Nakajima

This inventor holds 12 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Semiconductor Software Co., Ltd. Active years: 1988-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toyokatsu Nakajima. Retrieved from https://idiyas.com/inventor/toyokatsu-nakajima

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 6

Forward Citations = 105(Granted Patents)

Location History:

Itami, JP (1988 - 1999)
Hyogo, JP (1993 - 1999)

Company Filing History:

12 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

patents

5 out of 86

Mitsubishi Electric Semiconductor Software Co., Ltd

patents

where one patent can have more than one assignee

Years Active: 1988-1999

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5966086 - Microcomputer having an output circuit with a resistor ladder (1999-10-12),

2. 5907699 - Microcomputer with two oscillators of different frequencies selectable (1999-05-25),

3. 5721887 - Microcomputer including a circuit for generating a reset signal when the (1998-02-24),

4. 5638075 - Successive approximation ADC with rounding to vary bit number output (1997-06-10),

5. 5632040 - Microcomputer having reduced power consumption through impedance control (1997-05-20),

6. 5459851 - Dual-port memory with selective read data output prohibition (1995-10-17),

7. 5341120 - Comparison circuit (1994-08-23),

8. 5331324 - A/D converter (1994-07-19),

9. 5235552 - Semiconductor memory device and method of reading data therefrom (1993-08-10),

10. 5229770 - Analog/digital converter with advanced conversion termination notice (1993-07-20),

11. 4937782 - Counter control method (1990-06-26),

12. 4760291 - Synchronous bus type semiconductor circuit wherein two control signals (1988-07-26),

Title: Toyokatsu Nakajima: Innovator in Microcomputer Technology

Introduction

Toyokatsu Nakajima is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of microcomputer technology, holding a total of 12 patents. His innovative designs have paved the way for advancements in electronic devices and systems.

Latest Patents

Among his latest patents is a microcomputer featuring an output circuit with a resistor ladder. This microcomputer includes an operation circuit that performs operations using a reference voltage. The reference voltage input terminal receives the voltage from an external device, and the output circuit generates an output signal that depends on this reference voltage. Another notable patent is for a microcomputer with two oscillators of different frequencies that are selectable. This design incorporates two oscillation circuits for generating clocks with different frequencies. It can operate even when an oscillator is connected to only one of the circuits, allowing for flexibility in clock selection based on data latched in a latch circuit.

Career Highlights

Throughout his career, Toyokatsu Nakajima has worked with esteemed companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Semiconductor Software Co., Ltd. His experience in these organizations has contributed to his expertise in microcomputer technology and innovation.

Collaborations

Some of his notable coworkers include Mitsuru Sugita and Tatsuo Yamada. Their collaboration has likely fostered an environment of creativity and innovation in their respective projects.

Conclusion

Toyokatsu Nakajima's contributions to microcomputer technology through his patents and career achievements highlight his role as a significant inventor in the field. His work continues to influence advancements in electronic systems and devices.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]