Growing community of inventors

Tokyo, Japan

Masayuki Katogi

Average Co-Inventor Count = 2.54

ph-index = 6

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 = 263

Masayuki KatogiHideo Moriyama (9 patents)Masayuki KatogiHiroaki Machii (6 patents)Masayuki KatogiKatsunori Sato (1 patent)Masayuki KatogiKanji Tajima (1 patent)Masayuki KatogiNaohisa Iso (1 patent)Masayuki KatogiMasayuki Katogi (11 patents)Hideo MoriyamaHideo Moriyama (30 patents)Hiroaki MachiiHiroaki Machii (6 patents)Katsunori SatoKatsunori Sato (16 patents)Kanji TajimaKanji Tajima (10 patents)Naohisa IsoNaohisa Iso (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Moriyama Sangyo Kabushiki Kaisha (11 from 66 patents)


11 patents:

1. 6659622 - Illumination system and illumination unit

2. D458703 - Lamp device

3. D458696 - Lamp unit

4. D457664 - Lamp device

5. D450860 - Lamp device

6. D444895 - Colored light emitting unit

7. D444896 - Light emitting element

8. D442303 - Color illumination unit

9. D441884 - Color illumination unit

10. D441885 - Color illumination unit

11. D438331 - Translucent color filter

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as of
1/21/2026
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