Hideaki Ishimizu

This inventor holds 24 USPTO granted patents, primarily in Impact Printing Technology. Top assignees: Oki Electric Industry Co., Ltd., Oki Data Corporation. Active years: 1987-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideaki Ishimizu. Retrieved from https://idiyas.com/inventor/hideaki-ishimizu

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

Calculating rank

USPTO Granted Patents = 24

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 8

Forward Citations = 218(Granted Patents)

Location History:

Minato, JP (1991)
Tokyo, JP (1987 - 2003)

Company Filing History:

22 out of 4,980

Oki Electric Industry Co., Ltd.

Years Active: 1987-2003

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Areas of Expertise:

Impact Printer

Printhead Control

Dot Matrix Printing

Carriage Speed Control

High-Power Semiconductor

Temperature Control

Wire-Dot Print Head

Integrated Circuit

Connector Mechanism

Impact Force Determination

Self-Adjusting Controller

Print Gap Setting

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6539183 - Image forming apparatus for normal and thick print media (2003-03-25),

2. 6398331 - Apparatus for driving a printhead and method of driving the printhead (2002-06-04),

3. 5651621 - Wire dot print head with print wires fixed to tip portions of armatures (1997-07-29),

4. 5518323 - Method of adjusting a head gap for a wire dot impact printer (1996-05-21),

5. 5482387 - Dot print head and method of control over printing therewith (1996-01-09),

6. 5474391 - Print gap setting in an impact printer (1995-12-12),

7. 5450288 - Printed substrate for mounting high-power semiconductor chip thereon and (1995-09-12),

8. 5439302 - Self-adjusting controller for dot impact printer (1995-08-08),

9. 5326183 - Carriage speed control based on average dot density (1994-07-05),

10. 5311403 - Printed substrate for mounting high-power semiconductor chip thereon and (1994-05-10),

11. 5310271 - Solenoid actuator (1994-05-10),

12. 5196994 - Card type integrated circuit and respective 8/16-bit card connector (1993-03-23),

13. 5087134 - Method of and device for printer control (1992-02-11),

14. 5071268 - Wire-dot print head driving apparatus having sensing coils (1991-12-10),

15. 5064302 - Temperature control in a wire dot printer (1991-11-12),

Title: Innovations by Hideaki Ishimizu: Pioneering Imaging Technology

Introduction

Hideaki Ishimizu, an accomplished inventor based in Tokyo, Japan, holds an impressive portfolio of 24 patents. His work focuses primarily on advancements in image-forming technologies, contributing significantly to the printing industry. Ishimizu's innovations reflect a commitment to improving the quality and efficiency of print media.

Latest Patents

Among his latest patents is an innovative image-forming apparatus designed for both normal and thick print media. This apparatus features a developing roller and a developing blade, which work together to apply toner effectively, reducing the likelihood of white lines on printed images. The apparatus operates with a mechanism that varies the speed of the developing roller, ensuring high-quality print results.

Another significant patent from Ishimizu is for an apparatus that drives a printhead. This invention includes a timer, power supply, and controller that optimizes ink drop ejection based on the elapsed time since the last drop was ejected. The addition of fine vibrations to the ink meniscus before ejection enhances the precision of ink drops, ensuring reliable printing operations.

Career Highlights

Throughout his career, Ishimizu has had the opportunity to work with notable companies in the technology sector. He has held positions at Oki Electric Industry Co., Ltd. and Oki Data Corporation, where his contributions have been pivotal in advancing imaging technologies. His dedication to innovation has established him as a prominent figure in the field.

Collaborations

Ishimizu has collaborated with several talented professionals throughout his career, including Jiro Tanuma and Chihiro Komori. These partnerships have enabled him to enhance his inventions and explore new avenues for technological advancements in printing.

Conclusion

Hideaki Ishimizu's remarkable contributions to the field of imaging technology, through his numerous patents and collaborations, reflect his dedication to innovation. His groundbreaking work continues to influence the printing industry, making a lasting impact on the way images are formed and printed.

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]