Osaka, Japan

Osamu Inoue

This inventor holds 51 USPTO granted patents and 7 published patent applications, plus 1 CIPO patent, primarily in Phosphor Materials (CPC class C09K). Top assignees: Matsushita Electric Industrial Co., Ltd., Daikin Industries, Ltd., Panasonic Intellectual Property Management Co., Ltd.. Active years: 1989-2017.

USPTO Granted Patents = 51 

% Patents Active = 70.6


Average Co-Inventor Count = 4.2

ph-index = 18

Forward Citations = 939(Granted Patents)

Forward Citations (Not Self Cited) = 923(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kadoma, JP (1990)
  • Kobe, JP (1990 - 1991)
  • Kyoto, JP (1991 - 1993)
  • Moriguchi, JP (1992 - 1998)
  • Settsu, JP (1993 - 2004)
  • Hirakata, JP (2003 - 2007)
  • Osaka, JP (1989 - 2017)

Company Filing History:


Years Active: 1989-2017

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Areas of Expertise:
Oxychloride Phosphor
Light Emitting Device
Red Phosphor Material
Yellow Fluorescent Substance
Fluorescent Material
Magnetic Element
Composite Magnetic Body
Ultraviolet Light Emitting Material
Glass Composition
Air Filter Medium
Plasma Display Panel
Polytetrafluoroethylene Film
51 patents (USPTO):Explore Patents

Title: The Innovations of Osamu Inoue: Pioneering Light Emitting Technologies

Introduction: Osamu Inoue, an esteemed inventor based in Osaka, Japan, has made significant contributions to the field of phosphor materials and light-emitting devices. With an impressive portfolio of 51 patents, Inoue's work focuses on advancing lighting technologies that enhance both efficiency and quality.

Latest Patents: Among his latest patents, Inoue has developed an oxychloride phosphor designed to include divalent europium (Eu) as an augmenting agent. This phosphor is characterized by its unique composition, where the ratio of divalent Eu is meticulously controlled to be less than 2% with respect to the host crystal's predetermined substances. He has also invented a red phosphor material, critical as a main component in light-emitting devices, which absorbs excitation light and emits red light. These innovations not only demonstrate his technical expertise but also his commitment to pushing boundaries in the field of photonics.

Career Highlights: Osamu Inoue has a rich professional background that includes roles at renowned companies such as Matsushita Electric Industrial Co., Ltd. and Daikin Industries, Ltd. His experience in these organizations has undoubtedly shaped his approach to innovation, allowing him to hone his skills and contribute impactful solutions in the lighting industry.

Collaborations: Throughout his career, Inoue has collaborated with respected colleagues, including Osamu Tanaka and Katsutoshi Yamamoto. These partnerships have played an essential role in fostering an environment of creativity and innovation, leading to the development of groundbreaking technologies.

Conclusion: Osamu Inoue stands as a prominent figure in the realm of light-emitting technologies. With a solid foundation of patents and collaborative efforts, his work continues to influence the industry and inspire future innovations. Inoue's dedication to improving lighting solutions underscores the importance of research and development in driving technological advancement.

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