Sapporo, Japan

Hiroaki Nakagawa

This inventor holds 33 USPTO granted patents and 2 EPO patents, primarily in Optical Disc Technology. Top assignees: Mitsui Petrochemical Industries, Ltd., Hitachi-High-Technologies Corporation, Mitsui Chemicals, Inc.. Active years: 1980-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Nakagawa. Retrieved from https://idiyas.com/inventor/hiroaki-nakagawa

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


% Patents Active = 75.8


Average Co-Inventor Count = 3.4

ph-index = 6

Forward Citations = 108(Granted Patents)


Location History:

  • Iwakuni, JP (1980 - 1992)
  • Waki, JP (1997)
  • Yamaguchi-ken, JP (1997)
  • Yamaguchi, JP (1993 - 2004)
  • Kuga-gun, JP (2004)
  • Hitachinaka, JP (2015)
  • Sapporo, JP (2005 - 2017)
  • Tokyo, JP (2011 - 2019)

Company Filing History:


Years Active: 1980-2019

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Areas of Expertise:
Optical Disc Device
Biomolecule Fixing Board
Sugar Chain-Trapping Molecule
Oligosaccharide Synthesizer
Pellicle
Mask Protective Device
Dust-Proof Film
Cellulose Nitrate Films
Resorcinol Recovery
Aromatic Hydroperoxides
Sugar Chain Synthesis
Information Recording Medium
33 patents (USPTO):Explore Patents

Title: Hiroaki Nakagawa: Innovator in Optical Technologies and Cell State Analysis

Introduction

Hiroaki Nakagawa is a distinguished inventor based in Sapporo, Japan, with a remarkable portfolio of 33 patents. His work primarily focuses on advancements in optical disc technology and methods for evaluating cell states, showcasing his contribution to both technological and biomedical fields.

Latest Patents

Among his latest patents, Nakagawa has developed an innovative optical disc device that enhances the efficiency of light processing. This device involves splitting the cross section of luminous flux returning from a disc into multiple regions, thus allowing for a selective weighting of light amounts in areas characterized by favorable symmetry. Additionally, he introduced a method for determining cell states and an autoanalyzer, which noninvasively assesses the proliferation, multi-layering, and differentiation of cell sheets during cultivation by analyzing changes in amino acid concentrations within the culture supernatant.

Career Highlights

Throughout his career, Nakagawa has held pivotal roles in prestigious companies, including Mitsui Petrochemical Industries, Ltd. and Hitachi High-Technologies Corporation. His work within these industry giants has spurred significant advancements, driving innovation in optical technologies and biomedical applications.

Collaborations

Hiroaki Nakagawa has collaborated with notable professionals in his field, including Shinichiro Nishimura and Minoru Fujita. These collaborations have enhanced the research and development potential of his projects, contributing to the successful realization of his innovative patents.

Conclusion

Hiroaki Nakagawa's contributions to optical technology and cellular analysis exemplify the impact of dedicated inventors in advancing science and technology. With 33 patents to his name, his work continues to influence both the optical and biomedical industries, ensuring his legacy as a leading innovator.

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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