Kaisei, Japan

Hisashi Ohtsuka

This inventor holds 31 USPTO granted patents and 5 published patent applications and 3 EPO patents, primarily in Fluorescence Detection. Top assignees: Fujifilm Corporation, Fuji Photo Film Company, Limited. Active years: 1995-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Ohtsuka. Retrieved from https://idiyas.com/inventor/hisashi-ohtsuka

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

USPTO Granted Patents = 31 

% Patents Active = 38.7

 

Average Co-Inventor Count = 1.9

ph-index = 4

Forward Citations = 66(Granted Patents)


Location History:

  • Kaisei-machi, JP (2004 - 2008)
  • Kanagawa, JP (1995 - 2010)
  • Kanagawa-ken, JP (2000 - 2010)
  • Ashigarakami-gun, JP (2009 - 2013)

Company Filing History:


Years Active: 1995-2013

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Areas of Expertise:
Fluorescence Sensor
Mass Spectrometry
Detection Method
Immunochromatoassay
Surface Plasmon Resonance
Laser-Diode-Pumped Laser
Assay Method
Total Internal Reflection
Solid-State Laser
Sensor Unit
Measurement Apparatus
31 patents (USPTO):Explore Patents

Title: Innovations of Hisashi Ohtsuka: A Pioneer in Detection and Mass Spectrometry

Introduction: Hisashi Ohtsuka, based in Kaisei-machi, Japan, is a distinguished inventor recognized for his contributions to advanced detection methods and mass spectrometry. With a remarkable portfolio of 31 patents, Ohtsuka's innovative approaches have significantly impacted various scientific and technological fields.

Latest Patents: Among Hisashi Ohtsuka's most recent patents is a detecting method that utilizes dielectric particles containing magnetic material. This invention involves a magnetic binding substance designed to specifically bind with a target substance, featuring magnet-enveloped dielectric particles. These particles have magnetic materials encapsulated within them and functional groups that can interact within liquid samples. The method also includes a labeling binding substance that is capable of generating optical signals upon excitation with light in a predetermined area, enhancing the detection capabilities within a sample.

Another noteworthy patent pertains to a device for mass spectrometry, wherein an analyte is desorbed from a surface by irradiating it with measurement light. The invention incorporates a micro-structure with multiple metal bodies designed to excite localized plasmons, thus facilitating advanced analysis techniques. This patent exemplifies Ohtsuka's commitment to pushing the boundaries of current scientific equipment and methodologies.

Career Highlights: Hisashi Ohtsuka has an extensive professional background, having worked at notable companies such as Fujifilm Corporation and Fuji Photo Film Company, Limited. His experience in these leading organizations has undoubtedly contributed to his innovative ideas and successful patent applications. His drive for innovation is reflected in his numerous patents that continue to shape industry standards.

Collaborations: Throughout his career, Ohtsuka has collaborated with prominent individuals in the field, including Yoji Okazaki and Takayuki Katoh. These collaborations have not only broadened his horizons but have also fueled the development of groundbreaking technologies and applications that benefit the scientific community.

Conclusion: Hisashi Ohtsuka stands out as a leading inventor in the realms of detection methods and mass spectrometry. His 31 patents demonstrate a profound commitment to innovation, enhancing the capabilities of detection technologies and mass analysis. With a notable career characterized by collaboration and groundbreaking advancements, Ohtsuka continues to inspire future generations of inventors and researchers.

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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