Inventor
KOHJI TAKEUCHI
Inventor
JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Cprimary
G02CSpectacles17%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein13%
B29CShaping or joining of plastics9%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts9%
B29LIndexing scheme associated with subclass b29c, relating to particular articles9%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form9%
B29DProducing particular articles from plastics or from substances in a plastic state4%
G02BOptical elements, systems or apparatus4%
G06FElectric digital data processing4%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%
PatentTitleYear
11,833,800Method and apparatus for forming three-dimensional curved surface on laminated substrate, and three-dimensional curved laminated substrate202311,681,195Laminated structure, multiple laminated structure, lens, and method for producing laminated structure202311,495,856Glasses-type device and charger for glasses-type device202211,474,408Electronic device, method for producing electronic device, and photochromatic lens unit202211,221,533Electrochromic device2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2023Patents assigned to RICOH CO LTD (5)· patent assignee history
2022–2023Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 5 | 2022–2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 5 | 2022–2023 |