AO

Akihiko Okamoto

NE Nec: 14 patents #843 of 14,502Top 6%
Ricoh Company: 13 patents #1,714 of 9,818Top 20%
Pioneer Electronic: 3 patents #611 of 1,840Top 35%
BC Bizen Hatsujo Co.: 2 patents #5 of 10Top 50%
RC Richo Company: 1 patents #3 of 57Top 6%
Overall (All Time): #103,787 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
8479859 Energy regeneration device for either hybrid vehicle or electric automobile 2013-07-09
7717517 Headrest for vehicles Takeshi Yamane, Tokuzo Kobayashi 2010-05-18
7578559 Retractable vehicle headrest Takeshi Yamane, Tokuzo Kobayashi 2009-08-25
7359578 Information processing apparatus, and program, computer readable medium, and method for searching for image data 2008-04-15
7161285 CNT film and field-emission cold cathode comprising the same Kazuo Konuma, Yoshinori Tomihari, Fuminori Ito, Yuko Okada 2007-01-09
6967913 Information processing method for achieving optimization of recording velocity Yoshiyuki Ishiyama 2005-11-22
6898797 Optical disc cartridge which protects a disc therein from ambient light 2005-05-24
6877075 Information processor, information processing method and information processing program and recording medium 2005-04-05
6780075 Method of fabricating nano-tube, method of manufacturing field-emission type cold cathode, and method of manufacturing display device Fuminori Itoh 2004-08-24
6660452 Optical information memory medium and display recording method using the same Hiroko Iwasaki, Kenichi Aihara, Kyohji Hattori, Yoshihiko Hotta, Naoshi Mishima +1 more 2003-12-09
6404113 Field emission type cold cathode element, method of fabricating the same, and display device 2002-06-11
6404138 Cold cathode display device and driving method Kazuo Konuma 2002-06-11
6329035 Optical data storage medium capable of reversibly displaying information Hiroko Iwasaki, Kenichi Aihara, Kyohji Hattori, Yoshihiko Hotta, Naoshi Mishima +1 more 2001-12-11
6307309 Field emission cold cathode device and manufacturing method thereof Kazuo Konuma 2001-10-23
RE37093 Optical disk drive unit with a sealing type bearing member 2001-03-13
6198712 Disk apparatus including an inner cover and an outer cover with latching portions 2001-03-06
6153978 Field emission cold cathode device and method for driving the same 2000-11-28
6137760 Information recording and reproducing apparatus 2000-10-24
6060823 Field emission cold cathode element Hisashi Takemura, Yoshinori Tomihari, Naruaki Takada 2000-05-09
6040973 Method of driving a field emission cold cathode device and a field emission cold cathode electron gun Fuminori Ito 2000-03-21
5977696 Field emission electron gun capable of minimizing nonuniform influence of surrounding electric potential condition on electrons emitted from emitters 1999-11-02
5912870 Disk drive unit having improved shutter mechanism Tetsuo Kanno 1999-06-15
5877594 Electron beam apparatus having an electron lens and a structure for compensating for a spherical aberration of the electron lens Soichiro Miyano 1999-03-02
5850120 Electron gun with a gamma correct field emission cathode 1998-12-15
5786657 Field emission electron gun capable of minimizing nonuniform influence of surrounding electric potential condition on electrons emitted from emitters 1998-07-28