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Marina Del Rey, CA, United States of America

Ryutaro Sakai

Average Co-Inventor Count = 2.57

ph-index = 7

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 156

Ryutaro SakaiIsamu Arie (4 patents)Ryutaro SakaiYuki Kubota (4 patents)Ryutaro SakaiFumiya Matsuoka (4 patents)Ryutaro SakaiKuninori Hyogo (4 patents)Ryutaro SakaiTakeshi Nakajima (1 patent)Ryutaro SakaiTakuo Ikeda (1 patent)Ryutaro SakaiDaisuke Sato (1 patent)Ryutaro SakaiShinichi Iriya (1 patent)Ryutaro SakaiMakoto Imamura (1 patent)Ryutaro SakaiTetsuya Kohno (1 patent)Ryutaro SakaiJunichi Nagahara (1 patent)Ryutaro SakaiHemant Jha (1 patent)Ryutaro SakaiYasuhiro Habara (1 patent)Ryutaro SakaiManabu Sakamoto (1 patent)Ryutaro SakaiHideaki Nishino (1 patent)Ryutaro SakaiKenichi Nirei (1 patent)Ryutaro SakaiRyutaro Sakai (9 patents)Isamu ArieIsamu Arie (31 patents)Yuki KubotaYuki Kubota (22 patents)Fumiya MatsuokaFumiya Matsuoka (14 patents)Kuninori HyogoKuninori Hyogo (4 patents)Takeshi NakajimaTakeshi Nakajima (63 patents)Takuo IkedaTakuo Ikeda (46 patents)Daisuke SatoDaisuke Sato (44 patents)Shinichi IriyaShinichi Iriya (38 patents)Makoto ImamuraMakoto Imamura (37 patents)Tetsuya KohnoTetsuya Kohno (27 patents)Junichi NagaharaJunichi Nagahara (26 patents)Hemant JhaHemant Jha (10 patents)Yasuhiro HabaraYasuhiro Habara (10 patents)Manabu SakamotoManabu Sakamoto (5 patents)Hideaki NishinoHideaki Nishino (5 patents)Kenichi NireiKenichi Nirei (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Sony Corporation (9 from 58,129 patents)

2. Sony Electronics Inc (9 from 2,335 patents)

3. Sony Ericsson Mobile Communications Japan, Inc. (1 from 150 patents)


9 patents:

1. 8640054 - Tuning dial user interface

2. 8384672 - Remote control system having a touch screen

3. 8325149 - E-ink touchscreen visualizer for home AV system

4. 8245155 - Computer implemented display, graphical user interface, design and method including scrolling features

5. 8054294 - Touch screen remote control system for use in controlling one or more devices

6. 7853863 - Method for expressing emotion in a text message

7. 7774706 - System and method for mixing media content

8. 7683856 - E-ink touchscreen visualizer for home AV system

9. 7180527 - Text display terminal device and server

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as of
12/4/2025
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