Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11440293 | Layered product | Masahiko Yamada | 2022-09-13 |
| 6821001 | Lamp device for vehicle | — | 2004-11-23 |
| 6811289 | Lamp device for a vehicle having a free curved surface and a lens without a prism | — | 2004-11-02 |
| 6799874 | Automobile headlamp having a main reflector and a movable sub-reflector | — | 2004-10-05 |
| 6764208 | Lamp device for vehicle | — | 2004-07-20 |
| 6729752 | Headlamp | — | 2004-05-04 |
| 6527425 | Method and apparatus using B-spline reflective surface and curved lens to render it difficult to see reflector through lens | — | 2003-03-04 |
| 6392138 | Non-perfluoro fluorine-containing resin molded article having low-temperature heat-sealing property | Shigeru Ichiba, Kazuhiko Shimada | 2002-05-21 |
| 5662972 | Tubular laminate and process for producing the same | Kazuhiko Shimada, Kenjiro Idemori | 1997-09-02 |
| 5115038 | Tetrafluoroethylene copolymer and process for preparing the same | Kiyohiko Ihara, Katsuhide Ontani, Toshio Miyatani | 1992-05-19 |
| 5049177 | Method for forming fresnel-type prism lens | — | 1991-09-17 |
| 5036438 | Projector-type head lamp for motor vehicles | — | 1991-07-30 |
| 5003435 | Automotive lamp assembly | — | 1991-03-26 |
| 4959757 | Automotive lamp assembly | — | 1990-09-25 |
| 4943894 | Projector-type head lamp for vehicles | — | 1990-07-24 |
| 4928213 | Projector-type head lamp for vehicles | — | 1990-05-22 |
| 4904069 | Fresnel-type aspheric prism lens | — | 1990-02-27 |
| 4879636 | Projector-type head lamp for vehicles | Hirofumi Yamagishi, Tooru Segoshi, Kouji Shigemura, Hirokazu Yoneyama, Mototsugu Yamashita, deceased | 1989-11-07 |
| 4878161 | Projector-type head lamp assembly for vehicles | — | 1989-10-31 |
| 4825343 | Projector type headlamp for vehicles | — | 1989-04-25 |
| 4814950 | Automotive headlight of projector type | — | 1989-03-21 |
| D297538 | Riding lawn mower | Hiroyuki Ogasawara, Fumihiro Ikeda | 1988-09-06 |
| 4721494 | Drive transmission structure for tractor | Tetsuaki Hayashi, Hiroshi Itatani, Niro Bando, Mikio Yuki, Nobuyuki Yamashita +4 more | 1988-01-26 |