Inventor
Toyoji Hiyokawa
Inventor
Anjo, JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Cprimary
G01CMeasuring distances, levels or bearings45%
G08GTraffic control systems29%
G09BEducational or demonstration appliances8%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes5%
H04LTransmission of digital information, e.g. telegraphic communication5%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for3%
G01SRadio direction-finding3%
G06FElectric digital data processing3%
PatentTitleYear
10,861,332Communication terminal, server device, route retrieval system, and computer program202010,145,698Route search system, route search method, and computer program201810,132,638Route search system, route search method, and computer program20188,769,237'Map updating system and map updating program using dynamic cache memory'20148,370,061'Navigation device and navigation road data creating device'20138,180,570'Navigation apparatuses, methods, and programs'20126,424,363'Image display device, method of image display, and storage medium for storing image display programs'20026,415,225'Navigation system and a memory medium'20026,345,230'Vehicle navigation system and method'20026,333,702'Navigation device'20016,243,646'Vehicle navigation system with pixel transmission to display'20016,047,235'Vehicular navigation system'20006,034,626'Navigation system for a vehicle'20005,991,689'Navigation system with switching between an ordinary road preferential mode and a tall road preferential mode'19995,931,888'Navigation system for vehicles with alternative route searching capabilities'19995,825,306'Navigation system for vehicles'19985,793,631'Voice route-guidance system and method having a function for judging approachment to a decision point'19985,774,073'Navigation system for a vehicle'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2020Patents assigned to AISIN AW CO (18)· patent assignee history
1998–2002Based in Anjo, JP· patent location history
1998–2000Based in Toyota, JP· patent location history
2002–2020Based in Okazaki, JP· patent location history
2012–2014Patents assigned to HIYOKAWA TOYOJI (3)· patent assignee history
2014Patents assigned to HIRAKAWA KAZUYUKI (1)· patent assignee history
2014Patents assigned to HYAKUSAWA MASAHIRO (1)· patent assignee history
2018–2020Patents assigned to TOYOTA MOTOR CO LTD (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AISIN AW CO | 18 | 1998–2020 |
| HIYOKAWA TOYOJIself | 3 | 2012–2014 |
| TOYOTA MOTOR CO LTD | 3 | 2018–2020 |
| HIRAKAWA KAZUYUKI | 1 | 2014 |
| HYAKUSAWA MASAHIRO | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Anjo, JP | 8 | 1998–2002 |
| Okazaki, JP | 7 | 2002–2020 |
| Toyota, JP | 3 | 1998–2000 |