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For the Inventor, By the Inventor

Kawasaki, Japan

Hiroyuki Iwasaki

This inventor holds 79 USPTO granted patents and 2 EPO patents, primarily in Image Formation Technology (CPC class 3962). Top assignees: Nikon Corporation, Fuji Photo Film Company, Limited, Ricoh Company, Ltd.. Active years: 1989-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Iwasaki. Retrieved from https://idiyas.com/inventor/hiroyuki-iwasaki

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

USPTO Granted Patents = 79

% Patents Active = 88.6


Average Co-Inventor Count = 1.5

ph-index = 12

Forward Citations = 629(Granted Patents)

Forward Citations (Not Self Cited) = 602(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kawasaki, JP (1993 - 1998)
  • Kanagawa-ken, JP (1997 - 1998)
  • Yokohawa, JP (2000)
  • Saitama, JP (1990 - 2001)
  • Asaka, JP (1998 - 2003)
  • Tokyo, JP (1991 - 2008)
  • Yokohama, JP (1997 - 2013)
  • Kanagawa, JP (1989 - 2021)

Company Filing History:

goldMedal47 out of 8,995 
 
Nikon Corporation
 patents
silverMedal13 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents
bronzeMedal11 out of 28,940 
 
Ricoh Company, Ltd.
 patents
4. 4 out of 58,145 
 
Sony Corporation
 patents
5. 2 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
6. 2 out of 36,684 
 
Nec Corporation
 patents
7. 2 out of 141 
 
Tonen Corporation
 patents
8. 1 out of 1,279 
 
Fuji Photo Optical Co., Ltd.
 patents
9. 1 out of 220 
 
Toa Nenryo Kogyo Kabushiki Kaisha
 patents
10. 1 out of 15 
 
Tonengeneral Sekiyu K.k.
 patents
where one patent can have more than one assignee

Years Active: 1989-2021

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Areas of Expertise:
Image Forming Apparatus
Camera Systems
Photometry Devices
Motor Control
Liquid Discharge
Zoom Lens
Flash Control
Imaging Device
Cooling Apparatus
Optical Instruments
High Frequency Transfer
Engine Oil Composition
79 patents (USPTO):Explore Patents
1. 11014360 - Liquid discharge apparatus, liquid discharge method, and recording medium (2021-05-25),
2. 9787223 - Motor control apparatus, image forming apparatus, and motor control method (2017-10-10),
3. 9672088 - Hardware device controller, image forming apparatus, and control method (2017-06-06),
4. 9436121 - Driving apparatus, image forming apparatus, method of driving control and program (2016-09-06),
5. 8886072 - PWM generating unit, image forming apparatus, and image forming method (2014-11-11),
6. 8542941 - Imaging device, image detecting method and focus adjusting method (2013-09-24),
7. 8229310 - Image forming device including color photoconductor drums, photoconductor drum drive controlling method for controlling color photoconductor drums, and computer-readable recording medium (2012-07-24),
8. 8200133 - Image forming apparatus (2012-06-12),
9. 7848687 - Image forming device and deviation correcting method (2010-12-07),
10. 7712318 - Cooling apparatus, cooling method, program, computer readable information recording medium and electronic apparatus (2010-05-11),
11. 7660520 - Camera system with current and discharge controlled illumination (2010-02-09),
12. 7650068 - Camera and method of imaging (2010-01-19),
13. 7558510 - Image forming apparatus including a phase adjusting unit for adjusting the phase of rotational fluctuation of image carriers and method for controlling the same (2009-07-07),
14. 7399736 - Low viscosity, high abrasion resistance engine oil composition (2008-07-15),
15. 7280789 - Image forming and reproducing apparatus, and image transferring method for controlling rotation speeds of image carriers (2007-10-09),

Title: The Innovator Extraordinaire: Hiroyuki Iwasaki

Introduction:

Hiroyuki Iwasaki, a visionary inventor hailing from Kawasaki, Japan, has left an indelible mark on the global landscape of technology with his groundbreaking innovations. With an impressive portfolio of 79 patents to his name, Iwasaki is recognized as a pioneer in his field, pushing boundaries and redefining possibilities.

Latest Patents:

Among his latest patents is a revolutionary Liquid Discharge Apparatus, Liquid Discharge Method, and Recording Medium. This invention showcases Iwasaki's ingenuity in developing a system that efficiently discharges different color liquids to create precise images on recording media. Another notable patent is the Motor Control Apparatus, Image Forming Apparatus, and Motor Control Method, highlighting his expertise in motor control technology.

Career Highlights:

Iwasaki's illustrious career includes stints at esteemed companies such as Nikon Corporation and Fuji Photo Film Company, Limited. His innovative spirit and relentless pursuit of excellence have led to significant advancements in the fields of imaging technology and motor control systems.

Collaborations:

Throughout his career, Iwasaki has collaborated with accomplished individuals such as Tadao Takagi and Masaru Muramatsu. These partnerships have fostered creative synergy and resulted in cutting-edge inventions that have reshaped industries.

Conclusion:

In conclusion, Hiroyuki Iwasaki's dedication to innovation and his passion for pushing technological boundaries have firmly established him as a visionary inventor on the world stage. His pioneering work continues to inspire future generations of inventors and innovators, leaving a lasting legacy in the realm of technological advancement.

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]
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