Iigahama; Yukio

Patent Applications and Registrations

Patent applications and USPTO patent grants for Iigahama; Yukio.The latest application filed is for "projection apparatus, projection system and spectacle-type display apparatus".

Company Profile

2.6.3

Iigahama; Yukio - Hyogo JP
Iigahama; Yukio - Tokyo JP
Iigahama; Yukio - Kawasaki JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Projection apparatus, projection system and spectacle-type display apparatus Grant 10,423,057 - Iigahama , et al. Sept	2019-09-24
Projection Apparatus, Projection System And Spectacle-type Display Apparatus App 20190033699 - IIGAHAMA; Yukio ; et al.	2019-01-31
Optical device provided to an eye glass or a helmet having a voltage control unit that switches a voltage cyclically Grant 9,678,362 - Iigahama , et al. June 13, 2	2017-06-13
Optical device provided to an eye glass or a helmet having a frontal transmittance and a peripheral transmittance Grant 9,523,866 - Iigahama , et al. December 20, 2	2016-12-20
Optical Device App 20150346517 - IIGAHAMA; Yukio ; et al.	2015-12-03
Optical Device App 20150346516 - IIGAHAMA; Yukio ; et al.	2015-12-03
Display device having diffraction grating Grant 6,639,642 - Suzuki , et al. October 28, 2	2003-10-28
Display device having diffraction grating Grant 5,959,704 - Suzuki , et al. September 28, 1	1999-09-28
Fresnel lens and liquid crystal display device Grant 5,751,387 - Iigahama , et al. May 12, 1	1998-05-12

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.