Tokyo, Japan

Yoshiaki Ito

This inventor holds 84 USPTO granted patents and 21 published patent applications, plus 3 CIPO patents and 19 EPO patents, primarily in Semiconductor Devices (CPC class H01L29-7869). Top assignees: Semiconductor Energy Laboratory Co., Ltd., Olympus Corporation, Mitsubishi Denki Kabushiki Kaisha. Active years: 1978-2026.

USPTO Granted Patents = 84 

% Patents Active = 56.0


 

Average Co-Inventor Count = 2.5

ph-index = 11

Forward Citations = 619(Granted Patents)

Forward Citations (Not Self Cited) = 608(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Kamakura, JP (1990 - 1991)
  • Ichihara, JP (1998)
  • Chiba, JP (1993 - 1999)
  • Nagano, JP (1999)
  • Hyogo, JP (2003)
  • Chiba-ken, JP (2003)
  • Kamitakano, Sakyo-ku, Kyoto, JP (2008)
  • Bunkyo-ku, JP (2011)
  • Nagasaki, JP (2014)
  • Itabashi, JP (2014)
  • Ngasaki-ken, JP (2014)
  • Fuchu, JP (2004 - 2015)
  • Chiyoda-ku, JP (2015)
  • Kanagawa, JP (1990 - 2017)
  • Tokyo-to, JP (2017)
  • Sagamihara, JP (2012 - 2018)
  • Ibaraki, JP (2020)
  • Hachioji, JP (2022)
  • Tokyo, JP (1978 - 2024)

Company Filing History:

goldMedal28 out of 16,652 
 
Semiconductor Energy Laboratory Co., Ltd.
 patents
silverMedal9 out of 8,295 
 
Olympus Corporation
 patents
bronzeMedal8 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
48 out of 4,735 
 
Mitsubishi Heavy Industries Limited
 patents
55 out of 16,539 
 
Mitsubishi Electric Corporation
 patents
65 out of 6,957 
 
Sumitomo Chemical Company, Limited
 patents
74 out of 115 
 
Mitsubishi Heavy Industries Engineering, Ltd.
 patents
83 out of 97 
 
Ichikawa Co., Ltd.
 patents
93 out of 1,255 
 
Olympus Medical Systems Corporation
 patents
103 out of 58,144 
 
Sony Corporation
 patents
113 out of 8,227 
 
Tdk Corporation
 patents
122 out of 3,669 
 
Kao Corporation
 patents
131 out of 6 
 
Aqua Systems Limited
 patents
141 out of 237 
 
Banyu Pharmaceutical Co. Ltd
 patents
151 out of 17 
 
Kyoeisha Chemical Co., Ltd.
 patents
161 out of 172 
 
Mitsubishi Heavy Industries Thermal Systems, Ltd.
 patents
171 out of 1 
 
Naikai Salt Industries Co., Ltd.
 patent
181 out of 3,941 
 
Nitto-Denko Corporation
 patents
191 out of 3,263 
 
Sony Semiconductor Solutions Corporation
 patents
201 out of 1 
 
Wine Red Co., Ltd.
 patent
212 out of 834,307 
Other
 patents
where one patent can have more than one assignee

Years Active: 1978-2026

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Areas of Expertise:
Magnesium Chloride
Electrodialysis
Desalination
Endoscope
Photoelectric Conversion
Solid-State Imaging
Semiconductor Transistor
DCDC Converter
Water Treatment
Control Circuit
Optical Film
Power Generation
84 patents (USPTO):Explore Patents

Title: Inventor Spotlight: Yoshiaki Ito

Introduction:

Yoshiaki Ito is a prolific inventor based in Tokyo, Japan, with an impressive portfolio of 79 patents to his name. His innovative work in the field of desalination has garnered attention for its novel approach to enhancing the performance of cellulose acetate membranes.

Latest Patents:

Yoshiaki Ito's latest patents focus on a groundbreaking desalination performance restoration agent for cellulose acetate membranes. This agent includes a solvent and a modified polyvinyl alcohol with an acetyl group structure that revitalizes the desalination capabilities of the membrane. His research demonstrates a commitment to sustainability and efficiency in water treatment technologies.

Career Highlights:

Having worked at esteemed companies such as Semiconductor Energy Laboratory Co., Ltd. and Olympus Corporation, Yoshiaki Ito has honed his expertise in materials science and engineering. His contributions to the field have led to advancements in membrane technology and water treatment processes, showcasing his dedication to creating impactful solutions.

Collaborations:

Throughout his career, Yoshiaki Ito has collaborated with talented individuals such as Kei Takahashi and Shunpei Yamazaki. These partnerships have led to the development of innovative solutions in desalination and membrane technology, highlighting the importance of teamwork in driving progress within the industry.

Conclusion:

In conclusion, Yoshiaki Ito stands as a visionary inventor who continues to push the boundaries of desalination technology. His commitment to research and development has resulted in a series of patents that have the potential to transform the field of water treatment. With a strong foundation in materials science and a passion for innovation, Yoshiaki Ito exemplifies the spirit of creativity and ingenuity in the realm of inventions.

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