Okazaki, Japan

Hiroshi Ichikawa

This inventor holds 25 USPTO granted patents and 2 published patent applications and 1 EPO patent, primarily in Image Processing. Top assignees: Brother Kogyo Kabushiki-Kaisha, Micron Technology Incorporated, Hitachi-Omron Terminal Solutions, Corporation. Active years: 2002-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Ichikawa. Retrieved from https://idiyas.com/inventor/hiroshi-ichikawa-ye1mz9lw

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

Calculating rank
USPTO Granted Patents = 25 

% Patents Active = 72.0


Average Co-Inventor Count = 1.5

ph-index = 4

Forward Citations = 67(Granted Patents)


Location History:

  • Owariasahi, JP (2005)
  • Aichi-ken, JP (2011)
  • Aichi, JP (2013 - 2014)
  • Okazaki, JP (2011 - 2021)
  • Hachioji, JP (2002 - 2023)

Company Filing History:


Years Active: 2002-2025

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Areas of Expertise:
Semiconductor Device
Image Forming Apparatus
Loop-Back Test
Sheet Feeding
Paper Handling
Conveyor Technology
Exposure Timing
Detection Mechanism
Torque Control
Guide Member
Storage Apparatus
Roller Device
25 patents (USPTO):Explore Patents

Title: Hiroshi Ichikawa: A Pioneer in Semiconductor Technology

Introduction: Hiroshi Ichikawa, a notable inventor based in Okazaki, Japan, has contributed significantly to the field of semiconductor technology with a remarkable portfolio consisting of 24 patents. His latest innovations showcase his expertise and dedication to advancing electronic systems.

Latest Patents: One of Ichikawa's recent patents involves a semiconductor device performing a loop-back test operation. This innovative apparatus includes a memory cell array, a data input/output terminal, and both a read data path and a write data path that are coupled in parallel between the memory cell array and the terminal. The read data path features a pre-driver and an output driver connected in series, while the write data path contains an input receiver and a latch circuit also linked in series. Notably, the design incorporates a test path that provides a shortcut between the pre-driver in the read data path and the latch circuit in the write data path, enhancing testing efficiency.

Career Highlights: Hiroshi Ichikawa has built his career at esteemed companies such as Brother Industries, Ltd. and Hitachi, Ltd. His work in these organizations has allowed him to refine his skills in semiconductor design and development, leading to numerous patents that push the boundaries of technology.

Collaborations: Throughout his career, Ichikawa has collaborated with other skilled professionals, including Riichi Kato and Shinji Shibata. These partnerships have fostered an environment of innovation, allowing for the exchange of ideas and the development of groundbreaking technologies.

Conclusion: Hiroshi Ichikawa's impressive record of patents and his collaborations with fellow innovators highlight his significant contributions to the semiconductor industry. As technology continues to evolve, Ichikawa's work remains influential, paving the way for future advancements in electronic systems.

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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