MH

Makoto Hirakawa

Ricoh Company: 46 patents #272 of 9,818Top 3%
TC Toagosei Co.: 5 patents #30 of 338Top 9%
SC Sumitomo Precision Products Co.: 3 patents #24 of 199Top 15%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
Overall (All Time): #43,700 of 4,157,543Top 2%
56
Patents All Time

Issued Patents All Time

Showing 1–25 of 56 patents

Patent #TitleCo-InventorsDate
12271104 Light-source device, image projection apparatus, and display device Yohei Takano, Kazuhiro Fujita, Takashi Sasaki 2025-04-08
12215250 Adhesive composition and heat-fusible member using same Takahiro Ito, Makoto IMAHORI 2025-02-04
12130544 Light-source optical system, light-source device, and image display apparatus Yohei Takano, Kasumi Nakamura 2024-10-29
12072617 Light source optical system, light source device, light source unit, and image display apparatus Yohei Takano, Kasumi Nakamura 2024-08-27
11874592 Light source device and image projection apparatus Kasumi Nakamura, Yohei Takano, Kazuhiro Fujita, Takashi Sasaki, Shigeaki Imai 2024-01-16
11829058 Light source device and image projection apparatus including a rod integrator and light guide Kasumi Nakamura, Yohei Takano, Tatsuya Takahashi 2023-11-28
11822076 Image display device, image projection device, and moving body Daisuke Ichii 2023-11-21
11812201 Light guide optical device, light source device, and image projection apparatus Takashi Sasaki, Yohei Takano, Kasumi Nakamura, Kazuhiro Fujita, Shigeaki Imai 2023-11-07
11762272 Light-source device and image projection apparatus Kasumi Nakamura, Yohei Takano, Kazuhiro Fujita 2023-09-19
11720010 Light source device and projection device Kazuhiro Fujita, Yohei Takano, Shigeaki Imai 2023-08-08
11669004 Light source optical system, light source device, light source unit, and image display apparatus Yohei Takano, Kasumi Nakamura 2023-06-06
11630288 Image projection apparatus Yohei Takano, Shigeaki Imai, Kazuhiro Fujita 2023-04-18
11624009 Adhesive composition, and coverlay film, bonding sheet, copper-clad laminate and electromagnetic shielding material, each using said adhesive composition Masashi Yamada 2023-04-11
11567314 Image display apparatus and mobile apparatus 2023-01-31
11537037 Light source device, image projection apparatus, and light source optical system Yohei Takano, Kazuhiro Fujita, Shigeaki Imai 2022-12-27
11506967 Light-source device and image projection apparatus Kasumi Nakamura, Yohei Takano, Kazuhiro Fujita 2022-11-22
11441055 Adhesive composition, and material for battery, material for lithium ion battery, heat fusible member, and packaging material for lithium ion battery, each using the same Takahiro Ito, Mitsue Takamura 2022-09-13
11131850 Display apparatus and equipment Kento Nakamura, Hiromichi Atsuumi, Naoki Miyatake, Yuki Hayashi 2021-09-28
10941324 Adhesive composition, and coverlay film, flexible copper clad laminate, and adhesive sheet using adhesive composition Masashi Yamada, Anna Sekioka 2021-03-09
10606042 Magnification optical system Hibiki Tatsuno, Kiichiro Nishina, Yasuyuki Shibayama, Takanobu Osaka 2020-03-31
10451961 Focus adjustment system for an image display device Hibiki Tatsuno, Kiichiro Nishina, Yasuyuki Shibayama, Takanobu Osaka 2019-10-22
10310238 Magnification optical system Hibiki Tatsuno, Kiichiro Nishina, Yasuyuki Shibayama, Takanobu Osaka 2019-06-04
10073333 Light irradiation device, and image display equipped with the same, for emitting light of two or more components by laser light Takehiro Nishimori, Kazuhiro Fujita, Toshiharu Murai, Tatsuya Takahashi, Junichi Kitabayashi +1 more 2018-09-11
9962622 Evaporator and fuel cell system using the evaporator 2018-05-08
9894333 Light source unit and image display apparatus 2018-02-13