Inventor
YOHEI TAKANO
Inventor
JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them44%
G02BOptical elements, systems or apparatus34%
H04NPictorial communication, e.g. television20%
F21VFunctional features or details of lighting devices or systems thereof2%
PatentTitleYear
12,271,104Light-source device, image projection apparatus, and display device202512,130,544Light-source optical system, light-source device, and image display apparatus202412,114,106Light-source device and image forming apparatus including same202412,072,617Light source optical system, light source device, light source unit, and image display apparatus202412,066,752Light-source device, image projection apparatus, and light-source optical system202411,953,816Wavelength conversion plate, light source device, and image projection apparatus202411,874,592Light source device and image projection apparatus202411,829,058Light source device and image projection apparatus including a rod integrator and light guide202311,812,201Light guide optical device, light source device, and image projection apparatus202311,762,272Light-source device and image projection apparatus202311,720,010Light source device and projection device202311,677,914Light-source device and image forming apparatus including same202311,669,004Light source optical system, light source device, light source unit, and image display apparatus202311,640,106Light source optical system, light source device, and image projection apparatus202311,630,288Image projection apparatus202311,537,037Light source device, image projection apparatus, and light source optical system202211,506,967Light-source device and image projection apparatus202211,314,157Light source optical system, light source device, and image projection apparatus2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to RICOH CO LTD (18)· patent assignee history
2022–2025Patents assigned to TAKANO YOHEI (15)· patent assignee history
2022–2025Patents assigned to FUJITA KAZUHIRO (10)· patent assignee history
2022–2025Patents assigned to HIRAKAWA MAKOTO (10)· patent assignee history
2022–2024Patents assigned to NAKAMURA KASUMI (10)· patent assignee history
2022–2025Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 18 | 2022–2025 |
| TAKANO YOHEIself | 15 | 2022–2025 |
| FUJITA KAZUHIRO | 10 | 2022–2025 |
| HIRAKAWA MAKOTO | 10 | 2022–2025 |
| NAKAMURA KASUMI | 10 | 2022–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 18 | 2022–2025 |