Kanagawa, Japan

Satoko Ishikawa

This inventor holds 1 USPTO granted patent. Top assignee: Toshiba Lighting & Technology Corporation. Active years: 2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Satoko Ishikawa. Retrieved from https://idiyas.com/inventor/satoko-ishikawa

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 2004

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1 patent (USPTO):Explore Patents

Title: Innovator of Illumination: Satoko Ishikawa

Introduction: Satoko Ishikawa, a prominent inventor based in Kanagawa-ken, Japan, has made significant contributions in the field of lighting technology. With her innovative ideas, she has secured a patent that showcases her expertise in engineering and design.

Latest Patents: Ishikawa holds a patent for a "High-pressure mercury discharge lamp and lighting apparatus using the lamp." This innovative design features a light-transmitting discharge vessel enclosing a discharge space and seal portion. It incorporates spaced apart electrodes that define a discharge path, along with a specialized filling containing mercury, halogen, and lithium (Li). The filling components are meticulously selected, ensuring that the ratio of relative spectral energies B/A falls between 0.15 and 0.45. Here, A refers to the relative spectral energy of mercury (Hg) in the wavelength range of 402.5 nm to 407.5 nm, while B represents the relative spectral energy of lithium (Li) in the range of 667.5 nm to 672.5 nm.

Career Highlights: Ishikawa's dedication to her craft is exemplified by her role at Toshiba Lighting & Technology Corporation. Her pioneering work in lighting technology has helped establish the company as a leader in its field, driving advancements that enhance the effectiveness and efficiency of illumination products.

Collaborations: Throughout her career, Ishikawa has collaborated with esteemed colleagues such as Ichiro Tanaka and Hiromichi Kawashima. Their collective knowledge and teamwork have played a pivotal role in developing innovative products and patented technologies.

Conclusion: Satoko Ishikawa is a testament to the power of innovation in the lighting industry. Through her patent and collaborations, she has contributed to advancements that not only improve lighting systems but also push the boundaries of technological possibilities. Her work continues to inspire future generations of inventors and engineers.

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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