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Pinned Photodiode was invented by Hagiwara in 1975
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For Japanese language, visit http://www.ssis.or.jp/

For English language, visit http://www.ssis.or.jp/en/index.html

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Semiconductor History Museum of Japan
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For Japanese language, visit https://www.shmj.or.jp/

For English language, visit

https://www.shmj.or.jp/english/index.html

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　　　　Review of Early Developments of Image Sensors in Japan
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https://www.shmj.or.jp/museum2010/exhibi1005.html

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　　　Review of Early Developments of Image Sensors in Japan
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　　　　　　Semiconductor History Museum of Japan says
Yoshiaki Hagiwara at Sony invented the Pinned Photodiode in 1975
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https://www.shmj.or.jp/english/pdf/dis/exhibi1005E.pdf

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SONY explained that Hagiwara at Sony invented Pinned Photodiode in 1975.
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https://www.sony.net/SonyInfo/News/notice/20200626/




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SONY explained that Hagiwara at Sony invented Pinned Photodiode in 1975.
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https://www.sony.co.jp/SonyInfo/News/notice/20200626/


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The WEB site also explained that Hagiwara invented Pinned Photodiode in 1975.
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＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊
埋込込みPhotodiodeと Pinned Photodiodeの相違点
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊

●匿名の人からの投稿ですが、埋込みPhotodiodeと Pinned Photodiodeの相違点を的確に説明しています。
　そして　NECの寺西さんは　埋込みPhotodiodeの受光素子を世界ではじめて　ILT CCD　に採用しましたが
　その　IEDM1982の論文には　実際には　残像が存在します。その論文で報告した受光素子は従って正確には
　Pinned Photodiodeでなかった事を自らが論文で中での実測dataで明示した論文であると解釈されます。
　
　「もとＮＥＣの寺西さんを間違ってPinned Photodiodeの発明者として過大評価した」と明記しています。　

https://electronics.stackexchange.com/questions/83018/difference-between-buried-photodiode-and-pinned-photodiode

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http://www.aiplab.com/index_Page003_Invention_of_Pinned_Photodiode_in_1975.html

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Yoshiaki Hagiwara wrote a book on
"the World of Artificial Intelligent Digital Circuits",
which is important and needed to built
the intelligent image sensor systems.

ISBM978-4-88359-339-2
Hard Cover, 460 page,
\ 9000 Japanese Yen + tax

If you are interestied in the book, Please visit

https://www.seizansha.co.jp/ISBN/ISBN978-4-88359-339-2.html

https://www.seizasha.co.jp/

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The following four Japanese Patent Applications explained that
Hagiwara invented Pinned Photodiode with VOD function in 1975.
　index001_Image_Sensor_1975_1977_and_2014_Patents.html
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　index002_Facts_on_Invention_of_Pinned_Photodiode.html
　index003_Hagiwara_Publication_List.html
　index004_My_Wonderful_Memory_Pictures.html
　index005_Image_Sensor_Story_by_Hagiwara.html
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hagiwara-yoshiaki@aiplab.com http://www.aiplab.com/
hagiwara@ssis.or.jp http://www.ssis.or.jp/en/index.html
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